Just one other thing, you claim he is willing to put up with your flaws, which is rubbish, he has already he has shown he has no tolerance.

First of all, Asexuality isn't a flaw, there's nothing wrong with not being sexual, my eldest daughter is like you and her boyfriend is utterly respectful of her feelings at all times.

If you realize you can't stomach sex, which could be a real possibility, do you think, given his previous behaviour he will take no as an answer, or will he shout you down until your so frightened you just do what he wants?

Because for the record, this is rape. Please consider this man's behaviour very carefully.