I fell in love with someone else while in a 10-year relationship and I don’t know if that means I’m the problem
I’m 26F and I’ve been with my boyfriend since I was 16. Basically my entire adult life has been with him, and I genuinely don’t know anymore whether our relationship is normal, toxic, mutually toxic, or whether I’m just trying to make excuses for the fact that I emotionally cheated on him and then physically cheated on him.
I know Reddit hates cheaters, so I’m just going to say it immediately: I cheated.
But it didn’t start with sex.
I fell in love with someone else.
I know how that sounds. I know people will say you don’t “just fall in love” with someone else if your relationship is fine. I don’t really know what to say to that except that it didn’t feel like a decision. It felt like something that slowly happened and then suddenly I was in it.
I met someone else and at first it was just emotional. Talking, messaging, spending time together. I told myself it was harmless because nothing physical was happening. But I started looking forward to talking to him more than I looked forward to talking to my boyfriend. I started feeling understood in a way I hadn’t felt in a long time.
And then I realised I had feelings for him.
Real romantic feelings.
I didn’t act on it immediately, but I also didn’t stop it. I let it continue. I let it grow. I didn’t tell my boyfriend.
Eventually I went on a couple of dates with this other person.
I told myself I was confused, that I needed clarity, that I was just “figuring things out.” But I knew deep down what was happening. I was emotionally stepping out of my relationship while still staying in it.
And then, the day before writing this, I slept with him for the first time.
Immediately afterwards I felt sick with guilt.
Not just guilt about sex, but about everything that led up to it. The emotional connection. The secrecy. The fact that I had been building a parallel emotional life while still being in a long-term relationship with someone who has been in my life since I was a teenager.
I kept thinking about my boyfriend and everything we’ve been through together. Ten years. Our families know each other. We grew up together. We’ve talked about marriage and children. We’ve also just bought our first home together and are living together now, which makes everything feel even more complicated and harder to untangle.
And I had just crossed a line I can’t uncross.
The confusing part is that another part of me felt something close to relief. Not because cheating was exciting. It was more like, for a tiny amount of time, I had stepped outside of my relationship and realised that maybe I could exist without him.
That thought absolutely terrified me. My boyfriend doesn’t know.
Since it happened I’ve actually found myself trying harder in our relationship because I feel so guilty. I’ve been more affectionate. I’ve tried not to start arguments. When something bothers me I sometimes just let it go because I think, “Who am I to criticise him after what I’ve done?”
But I’m also starting to wonder whether that’s making everything worse. Because the truth is, I didn’t fall in love with someone else in a vacuum.
There are good parts of my relationship. He can be incredibly loving. We have the same sense of humour, know absolutely everything about each other, and when things are good I genuinely cannot imagine being with anyone else.
But when things are bad, they’re really bad.
He has cheated on me four times throughout our relationship.
He has called me names during arguments and said horrible things about me that he later says he didn’t mean because he was angry.
There have also been occasions where arguments became physical.
I feel strange even typing that because I don’t really think of myself as someone in an abusive relationship. When I hear “abusive relationship,” I imagine something much worse than my life.
But he has physically intimidated me during arguments before. There was an occasion where he stopped me leaving a room when I wanted to get away from an argument by grabbing me by the throat & throwing me to the ground. There have been times where I felt frightened of how angry he was.
Afterwards he would apologise, or we would eventually go back to normal, and I suppose I always thought that if I genuinely believed he was abusive I would have left.
So the fact that I stayed made me think maybe it wasn’t actually abuse.
There are other things too.
He can be very controlling about my phone and who I’m talking to. There have been times where I’ve felt like I have to explain conversations or prove that nothing is happening. I became used to being questioned about things that, looking back, probably shouldn’t have required an explanation.
There have also been things throughout our relationship that damaged my trust in him, particularly involving other women and sexual content online, and the repeated cheating has obviously made it very hard to feel secure with him.
But somehow whenever I became upset about those things, the conversation eventually became about whether I was being insecure, dramatic or controlling.
And I believed that a lot of the time.
I’m quite sensitive and I know I overthink things, so it became very easy for me to think, “Maybe this is just me.”
Then I met someone else.
And I don’t want to romanticise him because this isn’t really about him.
But something happened that I wasn’t expecting.
I felt seen in a way I hadn’t felt in a long time. I didn’t feel like I was waiting for the mood to change. I wasn’t analysing everything I said. I didn’t feel like I was annoying him by having feelings.
I felt wanted.
And over time, I think I fell in love with him.
That’s the part I can’t really undo in my head. It didn’t feel like a switch I flipped. It felt like something I woke up inside of.
Eventually I crossed physical lines too.
And now I’m here.
Immediately after sleeping with him I felt sick with guilt, but I also feel like I’ve been split in two. One part of me feels like I’ve destroyed my relationship. The other part of me feels like I’ve finally admitted something I’ve been avoiding for a long time: that I might not be as trapped as I thought I was.
My boyfriend doesn’t know.
And I don’t know what to do.
Sometimes I think I should confess everything, beg his forgiveness, and spend however long it takes trying to rebuild what I’ve broken.
Other times I think I should leave regardless.
Then I think about being 26, living together, having just bought our first home, and having absolutely no idea who I am without this person.
I have never been an adult without him.
I’ve never dated as an adult.
I’ve never lived a life where he wasn’t the person I came home to.
And honestly, part of me worries that I’m rewriting our entire relationship now because it would be easier to live with what I’ve done if I can convince myself that he’s a terrible person.
Maybe that’s what I’m doing.
Maybe I’m taking every horrible argument, the cheating, the emotional and physical abuse, and turning it into something bigger in my head so I don’t have to fully sit with the fact that I fell in love with someone else while still being in a long-term relationship.
But another part of me keeps wondering why I’ve spent so much of my relationship feeling anxious, guilty, or afraid of upsetting the person I’m supposed to feel safest with.
I know the obvious Reddit answer is probably “you should have left instead of cheating.”
I agree.
I should have.
I wish I had.
But I can’t undo it now.
So I suppose my actual question is: what do I do next?
Do I confess and try to repair a relationship I’ve had since I was sixteen, despite everything that’s happened between us?
Do I leave regardless of whether he forgives me, especially now that we live together and have just bought a home together?
And how do you know whether you’re leaving because the relationship is genuinely unhealthy or because you’ve done something terrible and leaving is easier than facing it?
I feel like I can’t trust my own judgement anymore.
I genuinely love him.
But I’m starting to wonder whether love, history, and shared life are actually enough reasons to stay.
UPDATE: I’ve initiated the conversation about ending the relationship.
I’m staying with a friend tonight, although I told my boyfriend I’m at my family home about three hours away. I know lying about where I am isn’t ideal, but given how physical our arguments have become in the past, I don’t want him knowing where I actually am while emotions are this high.
He is extremely angry. We’ve exchanged some messages, but I’ve avoided getting pulled into a full argument over text. He has agreed to speak to me on the phone tomorrow morning.
So I suppose this is actually happening.
I’m scared, guilty and incredibly sad, but underneath all of that I also feel a deep sense of exhaustion that I can’t ignore anymore. I don’t feel emotionally safe in this relationship. Over time I’ve felt more like I’m walking on eggshells than building a life with someone. The arguments, the intensity, and the way things escalate have left me constantly anxious and drained.
I’ve also realised I’ve been staying not because I’m happy, but because I feel responsible for his reactions, his stability, and the fear of what happens when I try to leave. That has slowly worn me down to the point where I don’t recognise myself in this relationship anymore. I feel lonely even when we’re together, and I’ve stopped feeling like I can be honest without it turning into conflict or emotional fallout.
I’ve spent years getting to the point of leaving and then backing down when he promises to change, tells me he needs me, or when things become too volatile. Each time I stayed, I lost a little more of my sense of peace.
This time I’m physically somewhere safe and I’m trying not to let fear or guilt change my mind.
Tomorrow I’m going to tell him clearly that I want to end the relationship. I also need to be very clear about the practical situation: I was the one purchasing the house, and he was going to live there with me, so it isn’t a shared decision in terms of ownership. I will be telling him that the house purchase will not be going ahead as planned, and that he will need to either continue on in our current rental or make alternative arrangements for where he lives.
I haven’t mentioned cheating or our neighbour; I’ve simply said I want to talk about ending things because I’m unhappy.
I don’t know what happens with our belongings or everything else yet. Right now I’m just trying to get through the actual breakup safely.