Retroactive jealousy while sex

I had a life before I was with my partner, that involved having girlfriends and one night stands, etc. That's a lifetime of memories that I now feel guilty for having. Something as silly as watching a TV show with my girlfriend will make me think "I used to watch this show with an ex, is it ok to watch it with my current girlfriend?" and I will feel real guilt over it and need to seek her reassurance. There are other memories, about "intimate" times, that sometimes come into my head and I have urges to share them with my girlfriend to alleviate the guilt I feel for having the memory. Fundamentally, I feel guilty every time I have a memory of an ex, often regardless of the content. I feel like I shouldn't have thoughts of anyone else other than my current partner and it's wrong to have memories of exes. When I do, I feel guilty, ruminate, then have the uncontrollable urge to share the memories with her. She gets upset, I get upset, but also feel relief that I've shared. Does anyone have any similar experiences and/or tips around this sort of issue? Thanks.

What do yall do when yall think of past partners or other people during intercourse with your current partner. I ended up confessing that to my partner and it’s damaging the relationship or making things really difficult. Having a really hard time trying to control the thoughts. I even think of other people while with my partner. Any advice or anyone with similar experience?? Please

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