@enjinim777,
No one can give you specific advice because all anyone knows is what you have said, not his side of the story. In an adult relationship everything is 50/50.
But what can be said in general terms is that relationships only work when the people in them match .... If both people want sex 4 times a day all is well, but if one person wants that and the other has no sex drive, then there is what a computer OS used to call a 'Fatal exception'.... It just doesn't work and never will.
As for what he apparently said about his ex and your body ..... did he?
My wife and I have been married
a very long time and she is a Dr of Psychology ... We are an egalitarian, symbiotic and Gestalt unit.
Whilst my mind is highly ordered, my wife's mind is all a bit 'mad professor' which goes with her literal genius IQ 160+.... I know that on occasion she holds entire conversations with herself and then remembers them as actual conversations which I taken part in.
Sometimes she'll say something like "You didn't like that book" or "You don't like that sort of pasta' or "I threw that blue coat away because you didn't like it"..... Which leaves me somewhat confused as I have no clue what she is talking about. We laugh about it and she accepts she does it.
Whilst I am not saying you are my wife, what I am saying is are you 100% certain that you did not take something he said .... Then turn it into something you thought you should hear to fit into your own idiom of life with him?
When anyone says "My partner is this, that and the other (all negative) ... My partner makes me feel like a pile of poo and I am super unhappy - what should I do?"
They know what to do, they just cannot face their reality .
People too often fall into relationships without thought ... but then cannot cope with digging themselves out of their mistake.
Two adults do not make a good relationship. A good sex life certainly does not make a good relationship .... It is people who match each other in as many ways as possible from their origins, socio economic group, views on politics, religion, families, friends, socialising, money, education, the importance of sex, the type/style of sex and any other category one can think of which has the best chance of creating a decent, happy, LTR.
Good fortune to you.