Sliding Is Not Deciding: How Couples Drift Into Commitments They Never Chose

One toothbrush becomes a drawer. A spare key becomes a shared address. Soon there is a lease, a pet, or a ring, yet no one remembers choosing what the step meant. It can feel like a subscription that renews itself until a price change finally makes you read the terms. Convenience made each small choice reasonable. The whole commitment still deserves a clear yes from both people. This is not an argument for or against living together. It is an invitation to make major relationship steps on purpose.

Key takeaways

• A major relationship step deserves a shared decision about meaning, timing, costs, and each partner’s freedom to say no.
• Living together does not cause one fixed outcome; studies find associations that change with age, timing, sample, and model.
• Selection and added constraints are different explanations, and current research does not cleanly choose between them.
• Before keys, a lease, shared money, engagement, relocation, or children, name what the step means to both of you.

A major step can happen before either partner names it

A study interviewed young adults who had recently lived with a partner. Moving in was often not a planned choice1. People described belongings moving over, nights together becoming routine, and convenience slowly becoming a new address. The study did not say each couple enters this way. It did show why a yes-or-no question may miss how the change happened.

The “sliding versus deciding” framework gives that pattern a name. Its authors proposed that some transitions happen with little shared talk, while each new tie makes the relationship harder to leave2. They called this relationship inertia. It is a theory about how constraints may shape what happens next, not proof that living together damages a relationship.

That distinction matters. A subscription can be worth keeping. The problem is not renewal itself. The problem is discovering that two people thought they had agreed to different terms. “We share rent” might mean practical savings to one partner and a promise of marriage to the other. Clear decisions let both meanings enter the same conversation.

Consider a composite example. Alex sleeps at Sam’s place each week. A rent hike makes one home seem wise. The dog already likes them both. Boxes move over on a free Saturday. Alex sees the move as a test. Sam sees it as the step before a ring. Neither view is wrong. Neither has been said. Months later, a hard talk feels late because so much now rests on the answer. The issue is not that they share a home. It is that each said yes to a different thing.

Zoom

Added constraints can make staying easier than choosing again

Dedication means wanting a future together. Constraints are the costs and pressures that make leaving harder. The inertia account separates these forces because they can grow at different speeds2. A couple may feel deeply devoted and also share a lease. Another couple may add a pet, shared money, a move, or a pregnancy before both partners have named a future.

Constraints are not automatically bad. They can support a choice that both people made freely. Trouble starts when a practical tie answers a question the couple never asked. “We already signed” can replace “Do we both want this?” The next step then renews the prior one without a fresh decision.

Clear choice also needs room for a true no. A yes given to stop a fight is not shared consent. Nor is a yes driven by fear that love will be withdrawn. People can care for each other and still need more time. They can also choose not to take the next step. A pause can protect honesty.

The same concern applies whether a couple plans to live together, waits until marriage, or never marries. Engagement, relocation, shared finances, and decisions about children can all add costs before expectations are clear. The target is drift, not a living arrangement. Different moral and religious convictions deserve respect.

This article does not apply when there is fear of a partner, threats, monitoring or tracking, blocked exits, sexual pressure, physical force, or control of money. These are safety problems, not communication problems. A lease, pet, shared money, pregnancy, or children can raise the cost of getting safe. Joint exercises can be unsafe in that situation. Seek confidential individual support first, and use a safer device if a partner may monitor your activity141516.

Research finds patterns, but it cannot prove one path caused them

Three of the studies cited here, the sliding-versus-deciding paper above and two below, come from the same research group. That group proposed the inertia idea, so these are one line of work rather than three separate confirmations. They found that people who began cohabiting before engagement later reported somewhat poorer marital outcomes. One telephone survey of married adults aged eighteen to thirty-four, about eighty-five percent White, found small differences. Its authors said the cross-sectional design could not establish cause3. A second study from the same research group found the expected pattern in first marriages. In second marriages, the risk showed up for anyone who lived together before the wedding, engaged or not. The authors said this did not fit the inertia idea4. These are links among people who later married, not forecasts for a couple reading today.

There are at least two broad explanations. Selection means that people who choose different paths may already differ in age, beliefs, resources, past relationships, or other unmeasured ways. Experience or constraint means the transition itself may add pressures that affect later choices. Both may operate. Neither can be isolated cleanly by asking married people to remember earlier decisions.

Age also changes the picture. Arielle Kuperberg found that accounting for age when partners first lived together made the difference in marital dissolution much smaller. In some models, the difference was not clear5. That result supports caution about treating cohabitation itself as the cause.

The debate remains active. Michael Rosenfeld and Katharina Roesler reported lower dissolution early in marriage but higher dissolution later among premarital cohabiters6. Wendy Manning, Pamela Smock, and Kuperberg challenged the time model and reported no association for recent marriage cohorts7. Rosenfeld and Roesler replied that the alternative analysis dropped much usable time and defended their earlier result8. The point in dispute is whether the association has faded in recent marriage cohorts. Rosenfeld and Roesler say it has not, and that an early-marriage benefit misled the field. Manning, Smock, and Kuperberg say the cohort evidence counters that. It has no simple winner.

Most cited samples are from the United States. The national comparisons rest largely on women’s retrospective reports of first marriages, mostly among women aged forty-four and under5678. The two surveys above included men and women. They cannot tell one couple whether to move in, marry, separate, or stay. They can support a humbler question: before a transition adds new ties, have both people freely chosen what it means?

The useful response is not to search for one rule for all couples. Ask what these studies were built to answer. Much of this work compares groups after the fact. It does not assign couples at random to life choices. It does not measure each reason people choose as they do. Good controls can narrow other explanations. They cannot erase all of them345678.

Where science meets the soul

Luke is a Gospel narrative, and Luke 14:25-33 addresses great crowds following Jesus. The builder and the king are brief illustrations inside a demanding teaching about the cost of discipleship11. Jesus asks, “For which of you, desiring to build a tower, does not first sit down and count the cost, whether he has enough to complete it?” (Luke 14:28, ESV)11.

Carolyn Sharp says the builder and king both assess what they can do before they act. She then warns that these cases are not fully like discipleship, since no one can know all its costs in advance12. Scott Hoezee likewise calls them analogies about prudent calculation, aimed at a crowd that may not grasp what following Jesus requires13. He also cautions against treating family life, including a healthy marriage, as what this passage is finally about, which is why the comparison here is offered only as wisdom. Both place the examples under discipleship, not couple guidance.

The hard word “hate” in verse 26 is commonly read as forceful language about first loyalty, not permission to despise family1213. The mainstream point is costly allegiance to Jesus. The passage does not command cohabitation or forbid it. It does not predict relationship success or supply a therapy protocol. Using it for couples is only a limited wisdom comparison: serious choices deserve honest thought before costs gather. That comparison stops there.

“Count the cost” has been misused to shame a past choice, push someone into marriage, or tell a person to remain in danger because leaving is costly. Those uses reverse the purpose of reflection. Scripture must not be used to erase consent, rush commitment, or block safety.

The Decide-Don’t-Slide Conversation

Set aside fifteen minutes before any major merge: keys, a lease, a pet, shared money, engagement, a move, or trying for a baby. Either person may opt out by saying, “I want to choose a safer or calmer time.” This is not a test, and neither partner scores the other.

1. Name one proposed step. Each person finishes: “To me, this step means…” Do not correct each other yet.
2. Ask, “What would become harder to change or leave after this step, and are we both freely choosing that cost?”
3. Pick one avoided topic to discuss next: debt, sex, children, faith, care of aging parents, conflict style, relocation, or non-negotiables.
4. End with one of three plain answers: yes, not yet, or no. If the answer is “not yet,” name what information or change is needed before another talk.

Stop if either person becomes afraid, is punished for saying no, or expects retaliation after the conversation. Do not use this exercise if there is control or violence. Seek private support instead.

The goal is not perfect certainty. It is a decision both people can recognize. If the step has already happened, you can still inspect the terms of the subscription: What did each person believe? What remains freely chosen now? What needs to change? A past slide does not cancel present agency.

What is known and what is not

Evidence supports a real pattern of some couples entering cohabitation without a clear decision1. Studies also link the timing of cohabitation and engagement with later outcomes in some samples34. Yet age, selection, cohort, and statistical choices can shrink or change those links5678. Causation is not settled.

Education evidence also needs restraint. A broad meta-analysis reported modest average gains in relationship quality and communication, in samples its authors describe as mostly White and middle-class9. A premarital-specific meta-analysis found a more mixed picture: communication improved, while relationship satisfaction did not improve when unpublished studies were included10. Neither review tested this short conversation. The exercise above is a practical adaptation, not a proven prevention program.

When to seek urgent help

Act now if a partner uses threats, force, sexual pressure, blocked exits, stalking, tracking, isolation, or control of money. A lease, a pet, shared money, a pregnancy, or children can raise the cost of getting safe, so plan with an advocate rather than alone. A partner who will not take no for an answer, or a push to commit very quickly, can signal control15. Heavy pressure to move in or to merge money belongs in the same conversation. Do not hold a joint decision talk. Contact the National Domestic Violence Hotline or a local domestic violence advocate for confidential individual support. Use a safer device if your activity may be monitored16. Contact the Suicide and Crisis Lifeline for suicidal crisis or emotional distress. Use emergency services when there is immediate danger17.

Frequently asked questions

Is living together before marriage always bad for a relationship?

No. The research does not support one fixed outcome for every couple. Results change with age, timing, sample, and statistical model5678. This article does not make a moral ruling about cohabitation. Its narrower point is useful across convictions: before any major step, make sure both people understand it, want it, and can say no without punishment.

Does sliding mean our relationship is doomed?

No. Sliding describes how a transition happened, not what must happen next. You can pause and make a clear choice now. Compare what each person thought the step meant, discuss the ties it added, and decide whether the present arrangement still has two free yeses. If fear or control is present, skip the couple talk and seek private support.

What should we discuss before moving in or getting engaged?

Start with meaning, freedom, and costs. Then discuss debt, sex, children, faith, care of aging parents, conflict style, relocation, and non-negotiables. You do not need identical views on every point. You do need enough honesty to know what you are choosing. A counselor or premarital educator can help, but no program can guarantee an outcome910.

What if one of us is not ready to decide?

“Not yet” is a real answer. Slow the practical step so that a deadline, rent problem, family expectation, or fear of loss does not decide for you. Ask what information, time, or change is needed. If one partner keeps applying pressure or punishes delay, treat that as a safety concern rather than a communication puzzle.

Does counting the cost make a relationship less faithful?

No. Careful thought is not weak faith. In Luke, the examples serve a call to costly discipleship, not a command to make a certain relationship choice111213. Christians may hold different convictions about cohabitation and marriage. Reflection can help a couple act with honesty inside those convictions. Prayer may guide discernment, but it does not replace consent, safety, or qualified care.

Related reading on NP FADY

• Insecurity Inferno: Self-Doubt That Scorches Trust and Sanity
• Name the Behavior, Not the Biography

References

1. Manning WD, Smock PJ. Measuring and modeling cohabitation: new perspectives from qualitative data. J Marriage Fam. 2005;67(4):989-1002. doi:10.1111/j.1741-3737.2005.00189.x. https://onlinelibrary.wiley.com/doi/10.1111/j.1741-3737.2005.00189.x

2. Stanley SM, Rhoades GK, Markman HJ. Sliding versus deciding: inertia and the premarital cohabitation effect. Fam Relat. 2006;55(4):499-509. doi:10.1111/j.1741-3729.2006.00418.x. https://onlinelibrary.wiley.com/doi/10.1111/j.1741-3729.2006.00418.x

3. Rhoades GK, Stanley SM, Markman HJ. The pre-engagement cohabitation effect: a replication and extension of previous findings. J Fam Psychol. 2009;23(1):107-111. doi:10.1037/a0014358. PMID:19203165. https://pmc.ncbi.nlm.nih.gov/articles/PMC5956907/

4. Stanley SM, Rhoades GK, Amato PR, Markman HJ, Johnson CA. The timing of cohabitation and engagement: impact on first and second marriages. J Marriage Fam. 2010;72(4):906-918. doi:10.1111/j.1741-3737.2010.00738.x. PMID:20640241. https://pmc.ncbi.nlm.nih.gov/articles/PMC2904561/

5. Kuperberg A. Age at coresidence, premarital cohabitation, and marriage dissolution: 1985-2009. J Marriage Fam. 2014;76(2):352-369. doi:10.1111/jomf.12092. https://onlinelibrary.wiley.com/doi/10.1111/jomf.12092

6. Rosenfeld MJ, Roesler K. Cohabitation experience and cohabitation’s association with marital dissolution. J Marriage Fam. 2019;81(1):42-58. doi:10.1111/jomf.12530. https://onlinelibrary.wiley.com/doi/10.1111/jomf.12530

7. Manning WD, Smock PJ, Kuperberg A. Cohabitation and marital dissolution: a comment on Rosenfeld and Roesler (2019). J Marriage Fam. 2021;83(1):260-267. doi:10.1111/jomf.12724. https://onlinelibrary.wiley.com/doi/10.1111/jomf.12724

8. Rosenfeld MJ, Roesler K. Premarital cohabitation and marital dissolution: a reply to Manning, Smock, and Kuperberg. J Marriage Fam. 2021;83(1):268-279. doi:10.1111/jomf.12744. https://onlinelibrary.wiley.com/doi/10.1111/jomf.12744

9. Hawkins AJ, Blanchard VL, Baldwin SA, Fawcett EB. Does marriage and relationship education work? A meta-analytic study. J Consult Clin Psychol. 2008;76(5):723-734. doi:10.1037/a0012584. PMID:18837590. https://pubmed.ncbi.nlm.nih.gov/18837590/

10. Fawcett EB, Hawkins AJ, Blanchard VL, Carroll JS. Do premarital education programs really work? A meta-analytic study. Fam Relat. 2010;59(3):232-239. doi:10.1111/j.1741-3729.2010.00598.x. https://doi.org/10.1111/j.1741-3729.2010.00598.x

11. Crossway. Luke 14. English Standard Version. Accessed September 21, 2026. https://www.esv.org/Luke+14/

12. Sharp CJ. Commentary on Luke 14:25-33. Working Preacher, Luther Seminary. Published September 4, 2022. Accessed September 21, 2026. https://www.workingpreacher.org/commentaries/revised-common-lectionary/ordinary-23-3/commentary-on-luke-1425-33-5

13. Hoezee S. Luke 14:25-33 commentary. Center for Excellence in Preaching, Calvin Theological Seminary. Published August 29, 2016. Accessed September 21, 2026. https://cepreaching.org/commentary/2016-08-29/luke-1425-33/

14. Centers for Disease Control and Prevention. About intimate partner violence. Updated August 19, 2026. Accessed September 21, 2026. https://www.cdc.gov/intimate-partner-violence/about/index.html

15. love is respect. Too good to be true? Accessed September 21, 2026. https://www.loveisrespect.org/resources/too-good-to-be-true/

16. National Domestic Violence Hotline. Internet safety for survivors. Accessed September 21, 2026. https://www.thehotline.org/plan-for-safety/internet-safety/

17. National Institute of Mental Health. Help for Mental Illnesses. Last reviewed April 2026. Accessed September 21, 2026. https://www.nimh.nih.gov/health/find-help

---

This article is for education only. It does not diagnose relationship problems, decide whether a relationship is safe, or replace individualized care. Reading it does not create a clinician-patient relationship.

NP FADY is the editorial and educational presence of Fady Boules, PMHNP-BC. Clinical care is provided through Inland Psychiatric Medical Group (IPMG), a separate entity. Reading this site does not create a clinical relationship.

If you or someone you know is in crisis

• Call 911 or go to your nearest emergency room for any life-threatening emergency.
• 988 Suicide & Crisis Lifeline — call or text 988, or chat at 988lifeline.org, available 24/7, free and confidential. En español: marque 988 y oprima 2, o envíe AYUDA al 988. Deaf or hard of hearing: 988 videophone (ASL) or TTY 711 then 988. Veterans: 988 and press 1, or text 838255.
• Crisis Text Line — text HOME to 741741.
• The Trevor Project (crisis support for LGBTQ+ young people) — call 1-866-488-7386, or text START to 678-678.
• National Sexual Assault Hotline (RAINN) — call 1-800-656-HOPE (4673) or text HOPE to 64673; free, confidential, 24/7. Online chat at RAINN.org/hotline.
• National Domestic Violence Hotline — call 1-800-799-SAFE (7233) or text START to 88788; 24/7, help in 200+ languages. Online chat at TheHotline.org. If your phone or computer may be monitored, calling from a safer device is an option.
• Riverside County — Inland SoCal Crisis Helpline 951-686-HELP (4357), 24/7 (Inland SoCal United Way / 211+, in partnership with RUHS-BH); Community Access, Referral, Evaluation and Support (CARES) Line 800-499-3008, 24/7.
• San Bernardino County — Access Unit (Behavioral Health Helpline) 888-743-1478, 24/7; Mobile Crisis/CCRT 800-398-0018 (24/7, all ages) or text 909-420-0560. Arrowhead Regional Medical Center (ARMC) has a dedicated walk-in adolescent psychiatric ER (ages 13–17).
• Children under 13 — call 911 for immediate danger, contact your county's mobile crisis team (they respond to all ages), or go to the nearest pediatric emergency room.
• California Peer-Run Warm Line (non-crisis — someone to talk to) — call or text 1-855-600-WARM (9276); daytime and evening hours, not a 24/7 line.
• NP Fady (non-emergency) — for routine scheduling or questions, call (909) 707-6261. This line is not monitored for emergencies.