At the end of 2024, I (25F), found out my husband (26M) used dating apps during our relationship.

I found out due to a stranger sending me a message with screenshots on social media. When I confronted my husband, he denied it, saying someone must have made a fake profile of him. Because his story didn’t add up, I went through his phone a few weeks later. In his e-mails I found proof that he had recently used dating apps. I confronted him again, and he told me he had only logged in on several dating apps to check if he still had any accounts. He even went as far as saying that he hadn’t told me because I wouldn’t have believed him anyways. We left the conversation at that, but of course I still felt like I couldn’t trust him. A while later I checked his e-mail again and found out he had made an anonymous account on Fetlife. I made a fake account on Fetlife and messaged him. A few days later he replied. I talked to him through the fake account, but when I started asking more personal questions, he suddenly deleted his account. I once again confronted him, and he denied it was him, making up some crazy lie about how he had a friend use his email to set up the fake account, because said friend was unhappy in his relationship. It was so crazy I didn’t know what to say, and eventually I lied and told him I believed him.

I’m at my wits end. We just bought our first house and got married only a month before I found out all of this! I don’t know what to do, I feel trapped in this marriage and have not been feeling well mentally for the past few months. I love my husband, but I also despise him for lying and betraying me. I feel like I can’t leave anymore, because I’ve been acting like I believe him for the past few months (although I know that’s not true). Especially now that we have a vacation booked for the summer, together with some friends. AITA if I leave now or in a few months?

TL;DR I found out my husband has used dating apps during our relationship a few months ago and he is lying about it. I made him think I believe his lies. AITA if I leave now?