i’ve been ruminating a lot think about my gf’s sexual past. I feel kind of trapped thinking about it and fixating on it. I don’t know why I’m doing it. What am I afraid of?

I’m gonna try to make this make sense, and any support or advice would be great. I have a beautiful girlfriend, who I’ve been dating off and on for a year. We were really rocky but got our shit figured out 4 months ago and have been strong since. I truly love this girl more than I’ve loved anyone. And I know based off the sheer amount of ocd that has come up on our relationship, that she means a lot to me. Me and her were in a friend group in 2022 and we never liked each other. However she had a sexual relationship with one of my old friends. Fast forward to now I haven’t talked to him in a long time and I don’t see it as an issue. However… I keep having this vivid flashback to him touching her some kinda way in 2022. I can’t remember exactly what happened or the details but it’s running through my head. I guess this is retroactive jealousy but it’s really almost hurting my feelings. I wish it would stop but I know ocd doesn’t work that way. I just wanna be happy with my girl and not upset at her past experiences

When I was single, I watched a lot of porn, specifically lesbian porn even though I’m straight. When I got into my current relationship I dwindled down and eventually stopped watching porn of any kind, around six or so months ago. I had a flare up recently that has caused me to question every part of myself including my sexuality and my identity, my relationship, and other things that are important and valued to me, and porn keeps popping up in all of these things. I feel like my porn usage was me cheating on my boyfriend, especially in the early parts of our relationship. I broke down to him last month about it and he said it was okay, that he forgives me, but I’m still hung up on it because I can’t shake the feeling that I’ve wronged him and that I’m a terrible person and that I need to leave him because of this. This is so excruciatingly painful. I don’t want to keep confessing over and over and over again, but I don’t want to be a dirty lying cheater, which I feel like I am.

Why am I so curious about my bf’s sexual past … I know the amount of people he’s been with, but now I’m curious as to how many at one time. I don’t want to ask because if I know and it’s an answer I don’t like, it will break me. How do I get the urge to ask out of my head :/