Our ex could not orgasm. Never has except on her own. She has sex because sex is fun. She likes getting laid. Period.
When and if she finds someone who she can become comfortably intimate with to have an orgasm with, she may find "just sex" is no longer worth it.
Until then, the intimate act is the fun part.
Another thing popped into my head reading this. From yuor other posts about your distaste for vagina. I think you may need to look at your core distaste to really get comfortable in achieving orgasm through intercourse. Thats just a thought since orgasm has a lot to do with comfort (situation, self etc)...
Best of luck