this is exactly what is going to happen
i had this one girl who was on some form of anti anxiety medication which made it very hard for her to orgasm. it only worked when i pressed my dikk into her p*ssy as hard as i could from behind while at the same time stimulating her breasts while she stimulated herself. it was a all very technical and not sexy at all, but i never complained since i figuered it wasn't her fault and if that was the only way she could get off than so be it. anyways, at some point in our relationship we had sex and i couldn't nut. it had nothing to do with her, i was simply stressed out at the time and couldn't relax. so the next day while i was at work she texted me.
her: "why are you even together with me if you don't find me attractive"
me:"why do you think i don't find you attractive?"
her: "we have sex and you can't come. do you know how embarrassing that is for me?"
me: "listen, that had nothing to do with you. i just have a lot do deal with right now, which has me stressed out."
her: "i don't believe you. if you'd find me attractive, there would be no problems."
so we went back and forth like that for half an hour, with me trying to explain to her that it had nothing to do with her and her insisting that i must think she's ugly, until at some point i gotand said:
"i never said anything about you're problems to orgasm and was very understanding. how come you're allowed to have a problem, and when i'm stressed out one time it's the end of the world?"
to which she replied: "wow, now i can never have sex with you again without feeling ashamed"
then there were no more replies and the the next couples of weeks she got totally distant until i decided to end things with her.
talking to a woman about her performance in bed is a very delicate subject.
Are you NOT better off without her in your life? If she can't take the honesty
That goes for guys too. If sex is important in a relationship then it's worth it to have some honest conversations. If you're just looking to hit and dip, then it doesn't matter.
"why do you think i don't find you attractive?"
and said:

Now I have to teach girls how to do this. This one rican chick would wrap her legs around my legs (heels on my hamstrings) and use it as leverage, she would change up pace, twirl, spring bounce, all kinda shyt from the bottom, her rhythm was
feels like yo dikk is getting milked, you'd think it would put a strain bouncing off rhythm, but the way she was doing it, it actually made humping easier. I still can't teach girls how to move like that, but years later I smashed venezuelan chick who did the same thing. they always bounce it back in doggy. Must be cultural or something