Most people who search for signs they can’t trust their partner already have a feeling. Something is off, and they want to know if they’re seeing clearly or if their own worry is running the show. I’ve sat with a lot of couples in that exact spot, and I’ve been in it myself. So this isn’t a checklist for convicting anyone. It’s a way to look honestly at what’s happening between the two of you, and at what you can do next.
- In any close relationship, trust is built and tested over time, mostly in small moments.
- Signs that trust is missing include a partner who can’t admit mistakes, words and actions that don’t match, and a closed-off, guarded way of relating.
- Relationships do best when both people feel safe and secure, and that grows out of honesty and mutual respect.
Intimate relationships require a foundation of trust
Romantic or platonic, every close relationship runs on trust. It matters so much that we’re constantly checking it, often without realizing. We notice whether someone shows up when they said they would, whether their story holds together, whether we feel calm or braced when they walk in the door.
The goal is what Stan Tatkin, who developed PACT (the Psychobiological Approach to Couple Therapy), calls a secure functioning relationship: one where both of you feel safe and protected in every part of it. A few questions help you gauge where you are. Is your partner your go-to person? Do you tell each other the important things? Can you be yourself without bracing for a reaction? Do you protect each other, in public and in private? Does the relationship feel like it comes first, for both of you?
Trust takes time to build, and that time is also when you learn whether someone is trustworthy. Some people show you early that they aren’t. Others reveal it gradually. And sometimes the problem isn’t that a partner is untrustworthy at all, but that the two of you have fallen into a pattern where neither feels safe enough to be open. Trust is something I work on directly in couples therapy, and it comes up often in individual sessions about relationships too.
When trust is low, doubt seeps into everything. You question the late text, the change in plans, the tone of voice. That doubt leads to conflict, and the conflict deepens the doubt. Here are some common red flags worth paying attention to, along with a few that are really about you, not your partner.
1. They are unwilling to admit or accept responsibility for their actions
When you disagree, does your partner own the part they played? Can they say “I was wrong” or “I’m sorry” and mean it? Or do they deflect, blame other people, blame you, or tell a version of events in which they carry no responsibility at all?
Everyone gets defensive sometimes. That’s a normal nervous system reaction to feeling criticized. The concern is when it’s the rule rather than the exception. A partner who can rarely see their own part is showing limited self-awareness, and often little motivation to change. It’s hard to trust someone’s account of things when their account always clears them.
Taking responsibility is one of the clearest marks of a trustworthy person. When it’s missing again and again, deep trust is very hard to build, because every conflict ends with you holding all of it.
2. They are inconsistent with their actions and words
We’re all human. We forget things, get overwhelmed and drop the ball. One missed dinner isn’t a character flaw. But if your partner regularly says one thing and does another, that pattern matters.
When someone doesn’t hold up their end again and again, it starts to feel like you’re not a priority, or like they don’t care about the impact on you. If you constantly feel put on the back burner, trust can’t settle in. A big part of a trustworthy partner is that you can count on them. They have your back, and their yes means yes.
Inconsistency and untrustworthiness tend to travel together. If you keep seeing this in your partner, it’s worth stepping back and asking yourself honestly whether their behavior has earned your trust. That can be a painful question to sit with. It’s still better than pretending you haven’t noticed.
3. They have a distant and closed-off nature
Personal boundaries are healthy. Everyone deserves some privacy, and not every thought needs to be shared. But there’s a difference between privacy and secrecy. If a partner is so guarded about their life that you’re left unsure of who they are or what they’re doing, that uncertainty erodes trust. Trust grows out of openness, so when someone deliberately keeps important things hidden, it’s natural to wonder why.
The same goes for how they handle conversations. If they avoid direct talks, shut down when you raise something, or don’t seem interested in your feelings or opinions, they may not be invested in understanding you. Some people go quiet because conflict genuinely overwhelms them, which is workable. Others go quiet because they don’t want to be known. Part of what I help couples sort out is which one is happening.
4. Your gut feeling says something is wrong
Your gut is information. Often it picks up on small shifts before your thinking mind has words for them: a change in tone, a story that doesn’t quite fit, a feeling of distance you can’t explain. When you keep trying to argue yourself out of that feeling, it’s worth slowing down and listening to it.
At the same time, your gut isn’t infallible. If you’ve been betrayed before, or grew up in a home where love felt unpredictable, your alarm system may go off when nothing is actually wrong. That’s not a flaw. It’s a nervous system that learned to stay alert. So treat the feeling seriously without treating it as proof. Ask: what specifically am I noticing? Is it new, or is it familiar from other relationships? Then talk about it, rather than letting fear make the decision for you.
5. You’re snooping around
This sign is about you, and it’s an honest one to check. If you’ve started scrolling through your partner’s social media, checking their phone when they’re in the shower, or tracking who they’re talking to, trust has already broken down somewhere.
Snooping can mean you don’t feel safe enough to ask a direct question. Maybe you’re uneasy about a close friendship with an ex, or curious about who they’re spending time with, and saying it out loud feels risky. Snooping rarely brings relief. Even when you find nothing, the anxiety usually comes back, and if you’re found out, it creates a second trust problem on top of the first.
If you notice yourself playing detective, take it as a red flag and look for a way to name your worry openly and respectfully instead. “I’ve been feeling anxious about us, and I want to talk about it” is a harder sentence than checking a phone, and a far more useful one.
6. They don’t have time for you anymore
Life gets busy. There are seasons with a new job, a new baby, a parent who’s ill, when one or both of you has less to give. That’s real. But work and responsibilities shouldn’t permanently replace time together. When someone is invested in a relationship, they usually find small ways to show up, even during a hard stretch.
A steady lack of interest or effort can mean your partner is less invested than you are, or is pulling away for reasons they haven’t shared. It’s fair to wonder whether the schedule is the whole story. And if your partner truly is swamped, a quick text or a check-in at the end of the day goes a long way. Those small bids for connection tell you they still care.
7. Their behavioral tendencies have changed
If your partner’s patterns change and they haven’t told you why, it makes sense to be curious. Affection drops off. Date nights stop. They’re on their phone more, home later, quieter at dinner. Change without explanation leaves a gap, and our minds fill gaps with the worst story available.
A sudden shift doesn’t automatically mean betrayal. People go through depression, stress at work, health worries or private struggles they’re embarrassed about. But if the change is significant and they won’t talk about it, or if their explanation doesn’t match what you see, there may be something bigger going on. Pay attention to the obvious changes and the subtle ones, and then ask directly.
8. You’re having the same arguments over and over
Conflict is a normal part of any relationship. What wears couples down is the argument that keeps coming back. You talk it out, you think it’s settled, and two weeks later you’re right back in it. Often the topic isn’t really the point. The fight about the dishes is rarely about the dishes. It’s about whether you can count on each other.
A few common reasons a fight keeps looping:
- You’re arguing about the surface issue, not the need underneath it.
- One or both of you isn’t willing to bend.
- You’re talking past each other, especially once things heat up.
- You don’t give each other time to cool down and reflect before trying again.
When the repeated argument touches loyalty or commitment, it can be hard to tell if you’re making a mountain out of a molehill or picking up on something real. Over time the loop takes a toll, and you may start doubting yourself or your worth in the relationship. If this sounds familiar, I wrote more about it in why we fight about the dishes.
9. You have caught them in a lie
Honesty is one of the cornerstones of any lasting relationship, and catching your partner in a lie is one of the clearest signs something is wrong. Lies range from small white lies to serious ones about where they were, who they were with or what they’ve been spending. Once you’ve caught one, it’s hard not to replay everything else they’ve told you and wonder.
What happens next matters a great deal. A partner who admits the lie, takes responsibility and works to rebuild trust is in a very different place from one who doubles down or makes you feel crazy for asking. If the lie involved an affair, recovery is possible for some couples, but it takes honesty and structure. My page on infidelity and betrayal recovery explains how I approach it.
10. Your partner exhibits atypical conduct concerning tech
Has their phone become something you’re not allowed near? Do they angle the screen away, change passwords, or suddenly guard their laptop over something as ordinary as email? Do calls and texts go unanswered for long stretches with explanations that don’t quite fit?
Almost all of us are attached to our phones, so phone use on its own isn’t a sign of anything. What matters is change and secrecy. When a partner becomes newly defensive about their devices, it’s natural to get suspicious and start asking questions, which can quickly turn into arguments. Left alone, that dynamic slowly damages the trust in your relationship. It’s worth agreeing together on what openness around tech looks like for you, since every couple’s norms are a little different.
11. You don’t feel secure in the relationship
One of the most telling signs is simply that you no longer feel secure. That can come from many directions: less affection or contact, promises that keep slipping, not feeling valued or wanted the way you once did.
Insecurity often grows in the gap between what you hoped the relationship would feel like and what it actually feels like day to day. When your partner stops putting in the effort they used to, doubt fills the space. Feeling insecure doesn’t always mean your partner is untrustworthy. Sometimes it means you both need to talk about what each of you needs to feel safe, and whether those needs are being met.
12. You don’t have mutual respect
Respect is a cornerstone of a healthy relationship, and when it starts to wear away, something is wrong. Mutual respect means taking each other’s opinions, feelings and needs seriously. More than that, it means treating each other with dignity and kindness, even when you disagree. Eye-rolling, mocking and name-calling are signs that respect is slipping. Without respect, trust can’t hold, and what grows in its place is insecurity and fear.
If disrespect has turned into control, threats, or you feeling afraid of your partner, that’s no longer a trust issue to work on together. Your safety comes first. The National Domestic Violence Hotline is free and confidential, day or night: call 1-800-799-7233 or text START to 88788. If you’re in crisis, call or text 988, and if you’re in immediate danger, call 911.
13. You’re not on the same page
Being on the same page about the big things, like family, money, career, children and values, builds trust and gives a relationship stability. You understand each other’s roles and know each other’s strengths and limits. When you’re far apart on these, decisions turn into standoffs, and the tension can slowly become mistrust.
Not being on the same page creates a disconnect that tends to grow. Couples who can’t find common ground on core values often feel stressed and wary of each other, which is frequently a sign the relationship is in trouble. The good news is that differences can often be talked through once each of you feels heard. Some couples find that what looked like a values gap was really a communication gap. If you’re struggling there, my article on the power of communication in a relationship is a good place to start.
Final thoughts
If you recognized your relationship in several of these signs, take some time to reflect before you act. Notice which signs are about your partner’s behavior and which are about your own fear or history. Both are worth taking seriously.
Talking openly with your partner is usually the first step toward rebuilding trust and security. That conversation is hard to have alone, especially when you’re both on edge. A neutral third party can help you name what’s going unsaid, see the pattern you’re both caught in and work on it without anyone being made the villain. When I work with couples on trust, I’m not there to take sides. I’m there to help you both see clearly. And if you’re unsure whether you even want to repair things, discernment counseling can help you decide with clarity first.
If you’d like to talk it through, you can book a free 20-minute consultation. No pressure, just a conversation.
