We've been arguing since we moved in together: should we be worried?

You almost never argued. Then you moved in together. And now it's friction every day. The toothpaste tube, clothes left lying around, voices rising over a dish left out of place.

You're starting to wonder: is this normal? Will it pass? Or has moving in together revealed something deeper?

The short answer: it depends. And the distinction between "normal" and "alarming" isn't a question of frequency, but of nature.

As a CBT psychotherapist in Nantes, I work with couples asking this exact question. Most feel reassured after a few sessions. Some discover it was time to seek help. Here's how to tell the difference.

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Why arguments increase after moving in together

Before moving in together, each encounter is a choice. You see each other when you want to, under conditions you control. You show your best self. Minor irritations are invisible because you're not exposed to them.

After moving in together, exposure becomes permanent. Your partner's habits become visible, your rhythms clash, unspoken expectations collide. It's not that the relationship is deteriorating: it's that it's shifting from "presentation mode" to "daily life mode."

Data: According to an OpinionWay survey for Castorama (2023), 60% of couples argue about decoration in their first months of cohabitation, and 55% argue about chores. These figures don't reveal incompatibilities: they reveal an adjustment phase where two operating systems are learning to coexist.

So the question isn't "are we arguing?" It's: how are we arguing.

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Normal arguments vs alarming arguments: 3 distinguishing criteria

Criterion 1: Is repair possible?

In a normal argument, even an intense one, there comes a moment when one person makes a repair gesture: a joke, a hand on the shoulder, an "okay, let's try this calmly again." And the other accepts this repair.

The red flag: Repair attempts are systematically rejected. One person extends a hand, the other refuses. The conflict doesn't end in resolution but in exhaustion or icy silence.

John Gottman, in his 40 years of research on couples, identifies failed repair attempts as the most reliable predictor of séparation.

Criterion 2: Does the conflict focus on a specific behavior or on the person themselves?

Normal argument: "I'm annoyed because the dishes aren't done."

Alarming argument: "You're incapable of doing anything right."

The first targets a behavior. The second targets identity. The difference is fundamental. When arguments systematically shift from behavior to personal attack, you enter dangerous relationship territory.

Criterion 3: Does the conflict produce change or repetition?

Normal arguments generate évolution. After friction about chores, an agreement emerges. After a disagreement about guests, a rule is established. Conflict acts as a catalyst: it reveals a gap and produces adjustment.

The red flag: The same argument repeats identically, week after week, month after month, with no évolution. The same words, the same tone, the same outcome. This repetition pattern signals that the surface conflict masks a deeper problem that's never addressed.

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The 4 Horsemen of the Apocalypse according to Gottman

John Gottman, a psychologist at the University of Washington, studied over 3,000 couples for 40 years. He identified 4 behaviors that predict the end of a relationship with 93% reliability. He named them the "4 Horsemen of the Apocalypse."

Horseman 1: Criticism

This isn't voicing a complaint ("I'm annoyed that you forgot to buy groceries"). Criticism, in Gottman's sense, is an attack on the other person's character ("You always forget everything. You only think about yourself").

The difference:

– Complaint: "I feel neglected when you spend the evening on your phone." (Speaks about yourself, targets a behavior.)

– Criticism: "You're selfish. You never care about me." (Speaks about the other, attacks identity.)

The antidote: Use "I" statements rather than "you" statements. "I feel X when Y happens. I need Z." This is the foundation of non-violent communication, and also a cornerstone of CBT applied to couples.

Horseman 2: Contempt

This is the most destructive of the four. Contempt includes sarcasm, eye-rolling, mockery, cynicism, and especially the feeling of moral superiority: "I don't see why I even bother explaining; you never understand anything."

Key data: Gottman discovered that contempt is the number one predictor of divorce. Couples where contempt is regularly present have a séparation risk four times higher than others. Why it's so destructive: Contempt communicates a fundamental message: "You are inferior to me. You don't deserve my respect." It's an attack on the very dignity of the other person. No relationship survives contempt for long. The antidote: Develop a culture of appreciation. Gottman recommends a ratio of 5 positive interactions for every 1 negative interaction. This ratio, called the "magic ratio," is the signature of stable couples.

Horseman 3: Defensiveness

When attacked (or when you feel attacked), the natural reaction is to defend yourself: "It's not my fault," "You're exaggerating," "Well, what about you?" Defensiveness includes counter-attacking, victimization, and refusing all responsibility.

The problem: Defensiveness blocks all resolution. If neither person acknowledges any responsibility, the conflict loops endlessly. Every attempt at discussion becomes a courtroom where each person pleads innocence. The antidote: Accept some responsibility, even minimal. "You're right, I could have tidied up before going out. Next time, I'll be more careful." This sentence de-escalates 90% of conflicts. Not because it's 100% sincère, but because it breaks the attack-défense cycle.

Horseman 4: Stonewalling

Stonewalling is complete withdrawal: shutting down, stopping responding, leaving the room, staring at the wall with an impassive face. It's the behavior of someone who is emotionally overwhelmed (what Gottman calls "flooding") and who cuts themselves off from the interaction to survive.

Data: Stonewalling is used in 85% of cases by men. Not from disinterest, but because the male nervous system is, on average, slower to recover from intense emotional activation. Withdrawal is a protection mechanism, not aggression — but it's experienced as abandonment by the other person. The antidote: Ask for a structured break. "I need 20 minutes to calm down. I'll come back and we'll talk about it." This statement replaces the wall with a temporary bridge. The key: actually return after the break. A break without return is disguised abandonment.

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If the 4 Horsemen are present: seek help quickly

This is the central message of this article. The occasional presence of a horseman is human. We've all rolled our eyes or counter-attacked when irritated.

But if two or more horsemen are regularly present in your daily interactions — if contempt has set in, if defensiveness has become the default mode, if stonewalling replaces discussion — then your relationship is on a downward trajectory that won't correct itself.

Gottman identified that couples typically wait an average of 6 years after the first warning signs before seeking help. Six years of erosion during which resentments accumulate and patterns rigidify.

Don't become part of this statistic.

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The 5 most common cohabitation argument topics

1. Chores and mental load

Statistic: 55% of cohabiting couples regularly argue about chores (OpinionWay, 2023). It's not a conflict about cleanliness. It's a conflict about who thinks, who plans, who remembers. In CBT terms: Resentment about chores is often fueled by automatic thoughts like "he/she should know." But nobody "should know" something that hasn't been explicitly communicated. The solution involves a formalized division of labor, revisited regularly.

2. Money and expense-sharing

Relationship with money is intimately tied to family history. For some, spending is an expression of freedom. For others, it's a source of anxiety. These different relationships with money clash head-on in cohabitation.

The most common trigger: Not the amount spent, but unplanned spending. A 200-euro purchase is trivial to one person; to the other, it's a décision that should have been discussed. The friction is about the threshold above which a purchase becomes "joint."

3. Family and in-laws

Moving in together makes concrete a reality that weekend outings masked: you're not just living with one person, you're living with their family system. The frequency of visits, the place given to parents, family habits imported into the home — all topics that emerge after moving in.

The typical conflict: "Your mother calls three times a day" versus "You refuse to see my family." Behind this conflict lies an attachment issue: leaving your original home to create your own, without cutting ties. It's a developmental process, not a personality problem.

4. Sexuality and intimacy

Cohabitation changes sexuality. Permanent availability reduces desire (the proximity paradox). Daily exhaustion accumulates. Unresolved arguments create emotional distance that affects physical intimacy.

The trap: Interpreting the frequency decrease as personal rejection. "If he/she doesn't desire me anymore, it means I'm no longer attractive." This interpretation triggers an avoidance cycle: the more you fear rejection, the less you initiate; the less the other feels desired; the greater the distance grows.

5. Personal space and time

How much time together? How much time alone? When does "taking time for yourself" become "avoiding the relationship"? These questions have no universal answers. They only have negotiated ones.

The typical conflict: "You're out every Tuesday night" versus "I have the right to have my own life." The underlying issue is rarely Tuesday night. It's the balance between attachment and autonomy, between "we" and "I."

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Non-violent communication applied to daily life: the CBT method

For each recurring argument, CBT offers a 4-step process that replaces the attack-défense cycle with an observe-express-listen-agree cycle.

Step 1: Observe without judging

"The dishes have been in the sink since this morning." (Observable fact.)

Not: "You left the dishes again." (Judgment + "again" = generalization.)

Step 2: Express your feeling

"That frustrates me because I need a tidy space to feel good."

Not: "You drive me crazy." (Accusation + externalizing emotional responsibility.)

Step 3: Listen to the other person's reality

"How do you see things from your side?"

This question opens a space. It signals that you're not trying to be right, but to understand.

Step 4: Find a concrete, measurable agreement

"We do the dishes the same evening, taking turns every other day."

A vague agreement ("We'll be more careful") solves nothing. A precise agreement reduces ambiguity and therefore conflict.

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When to seek professional help

Here are indicators suggesting that professional support is appropriate:

• The same arguments repeat for more than 3 months without évolution.
• You identify 2 or more Gottman horsemen in your regular interactions.
• You actively avoid certain topics for fear of the other's reaction.
• You feel like you're walking on eggshells all the time.
• One of you is considering séparation as a solution but doesn't dare discuss it.
• Physical affection (not just sexual) has disappeared.
• You feel more alone as a couple than when you were single.

A couple seeking therapy isn't a couple in failure. It's a couple taking their relationship seriously. Cognitive-behavioral couples therapy is a structured approach, limited in time (8 to 16 sessions typically), with measurable objectives and concrete tools.

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Arguments are a language — learn to decipher it

Behind every surface argument is an unmet need. Behind "you never do chores," there's often "I need to feel that you're investing in our life together." Behind "you go out too often," there's often "I'm afraid I don't matter to you anymore."

Couples that last aren't those who never argue. They're the ones who've learned to hear the need behind the complaint, and to respond with respect.

If your arguments worry you, that's probably a good reason to talk to a professional about them. Not because things are going badly, but because they could go better — and sooner is always better.

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I see clients at my office in Nantes and via video conference for CBT-based couples therapy. Sessions are structured, concrete, and focused on measurable results. Learn more about couples therapy Book an appointment

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Gildas Garrec — CBT Psychotherapist in Nantes Individual and couples therapy

Also worth reading

• Moving in together: the complete guide before taking the leap
• Cohabitation: 10 things you MUST know before moving in
• LAT (Living Apart Together): being in a couple while living separately
• Do I need a therapist? 10 telltale signs

Do you see yourself in this article?

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Watch: Go Further

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