So you’re thinking about taking the leap — combining closets, splitting the rent, and sharing a bathroom with the person you love. But here’s the question most couples skip right past: why are you moving in together?

So you’re thinking about taking the leap – combining closets, splitting the rent, and sharing a bathroom with the person you love. Moving in together is a huge milestone, and honestly? It’s one of the most common steps couples take today. In fact, more than three-quarters of people now live with a romantic partner before marriage.

But here’s the question most couples skip right past: Why are you moving in together?

That little question may predict more about your relationship’s future than almost anything else.

The Research Is In – And It’s Fascinating

A 2025 longitudinal study published in Couple and Family Psychology: Research and Practice followed 485 couples over five years, tracking their relationship health after moving in together. Researchers from the University of Denver looked at three of the most common reasons couples give for cohabitating:

To spend more time together (an intrinsic, love-driven reason)
To test the relationship (a doubt-driven reason)
Out of convenience (an external, circumstantial reason)

What they found was striking – and really useful if you’re sitting in my office wondering whether moving in together is a good idea right now!

Moving In “To Spend Time Together” = Good Sign 💚

Couples who moved in primarily because they wanted more closeness and connection – not because they had doubts, not because it was cheaper – showed significantly better relationship outcomes over time.

Specifically, this group reported:

Higher relationship satisfaction
Lower negative communication (less fighting, less stonewalling)
Higher dedication (more of that “we’re in this together” feeling)

This makes a lot of sense from an attachment theory perspective. When partners move in from a place of security and genuine desire for intimacy, they’re bringing a foundation of commitment into the shared space. They’re not hoping moving in will fix something – they’re building on something already good.

Moving In “To Test the Relationship” = Red Flag 🚩

This one is so common, and so misunderstood. Many couples believe that living together is a smart “trial run” before making a bigger commitment. The logic makes sense on the surface: let’s see if we’re compatible before we really commit.

But the research tells a different story.

Couples who move in primarily to test the relationship showed:

Lower relationship satisfaction
More negative communication patterns
Lower dedication to the relationship
A higher likelihood of breaking up after moving in

Here’s the key insight: the doubts that led them to “test” the relationship didn’t go away when they signed a lease together. Those doubts followed them in. And once you’re sharing an address, a Netflix account, and furniture – it gets a whole lot harder to walk away, even if the relationship isn’t working.

Researchers call this relationship inertia – the idea that couples can slide into deeper commitment not because they’ve decided to, but because the practical constraints of living together make it harder to leave. That’s not the foundation anyone wants.

What About Moving In “Out of Convenience”? 🤷

Interestingly, convenience alone – splitting rent, already spending every night together, logistics – wasn’t a significant predictor of relationship outcomes either way. It wasn’t a red flag on its own, but it wasn’t a green flag either.

The researchers suggest convenience may be a neutral reason whose impact really depends on what else is driving the decision. If convenience comes alongside genuine love and commitment, it’s probably fine. If it’s the only reason… it might be worth a deeper conversation.

Here’s a nuance I’d add from my own clinical work: when both partners are moving in primarily for convenience and they’re genuinely on the same page about it, it tends to be much less of a concern. That mutual clarity – “we both know why we’re doing this, and we’re aligned” – can actually reduce ambiguity and prevent the kind of unspoken mismatch that causes trouble down the road. The research doesn’t isolate this dynamic specifically, but in my experience, shared understanding about your reasons for cohabitating, whatever those reasons are, is a protective factor in its own right. It’s the unspoken assumptions that tend to get couples into trouble.

The Big Takeaway: Your Reasons Reveal Your Reality

Here’s what I love most about this research: the reasons couples gave for moving in together didn’t change their relationship trajectory. Instead, they reflected the relationship quality that was already there.

In other words, your reasons for wanting to cohabitate are a window into the current state of your relationship. That’s both sobering and empowering.

If you’re moving in from a place of love, excitement, and security? That’s likely what you’re bringing with you.

If you’re moving in because you’re hoping it will answer some nagging questions, or because it just sort of “happened”? Those questions and that ambivalence tend to come along for the ride too.

5 Questions Every Couple Should Ask Before Moving In Together

As a couples therapist in Long Beach, CA, I use research like this all the time to help couples make intentional decisions – not ones they drift into. Before you schedule that U-Haul, have an honest conversation about these:

Are we excited about building a shared life, or are we hoping living together will solve an existing problem?
Do we have clarity about our long-term commitment – or are we moving in to find that clarity?
What does “moving in together” mean for our future? Are we on the same page?
Are there practical pressures (lease ending, finances, distance) driving this more than relationship readiness?
If we weren’t feeling any external pressure, would we still choose to move in right now?

There are no perfect answers – but the conversation itself matters enormously.

When to Talk to a Couples Therapist Before You Move In

You don’t have to be in crisis to benefit from couples therapy. In fact, some of the most productive sessions I have are with couples who are doing well but want to be intentional about big transitions – like moving in together, getting engaged, or navigating a major life change.

If any of these resonate with you, it might be a great time to check in with a professional:

You’ve been going back and forth about whether to move in
One of you is more ready than the other
You’ve had recurring arguments that haven’t been resolved
You’re not sure what your long-term future looks like together
You want to start this new chapter with a strong foundation

At Rose Hanna Counseling Services, we work with couples in Long Beach, Los Angeles, and throughout Southern California – both in person and via telehealth. We use evidence-based approaches like the Gottman Method and Emotionally Focused Therapy (EFT) to help couples build the kind of intentional, connected relationships that thrive – whether you’re moving in together, getting married, or just trying to communicate better.

The Bottom Line

Moving in together is one of the most exciting (and sometimes terrifying!) milestones in a relationship. The research is clear that why you’re doing it matters – not because the right reason magically makes everything work, but because your reason reflects the health of your relationship right now.

So before you start packing boxes, have the conversation. Ask the hard questions. And if you need a little support getting there – that’s literally what we’re here for.

Ready to strengthen your relationship before (or after) a big transition? Rose Hanna Counseling Services, Long Beach CA — 562-291-6356, RoseHanna.com — Schedule a Session

We proudly serve individuals, couples, and families in Long Beach, Lakewood, Signal Hill, Seal Beach, Torrance, and throughout the greater Los Angeles and Orange County areas.

Thinking About Moving In Together? What the Research Says About Why You're Doing It (And Why It Matters More Than You Think)

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