Need help

need honest advice from men who’ve been through this, no sugarcoating.

I’m dealing with something that’s messing with my head bad. Me and my My girl was talking about our bad sexual experiences yk just a normal conversation she told me about a past experience where a guy she was with was bigger like to big and went really deep to the point she was screaming, moving around, and couldn’t take it. He even had to ask her if she wanted him to stop.

She also tells me I’m the best she’s had, I make her feel the best, she comes back to me, I’ve made her react strongly, multiple rounds, got her to certain levels she never reached before, tells me I know what I’m doin and rating my sex 10/10. making her blackout from pleasure etc.

So logically I know I’m doing everything right.

But mentally, I can’t get over that one thing. The idea that he could physically go deeper and pushed her to that “I can’t take it” “ hollering “ point is stuck in my head. I keep replaying it and it makes me feel like there’s something I can’t match physically, even though she didn’t even necessarily enjoy it and it went past her limit.

It’s gotten to the point where:

- I replay it constantly

- I get irritated thinking about it

- I sometimes feel resentment toward her

- I question myself even though she reassures me

My question is:

Why does this bother me so much even though I know I satisfy her better overall?

And how do I actually get past this without just “ignoring it”?

Be real with me. I want real answers, not just “she chose you” type responses.