He's an idiot and he clearly doesn't deserve you. No man or woman should ever say that about someone and for him to say that to his fiance is terrible. You are who you are and if he can't accept that then you shouldn't be with him. I'm not going to say leave him because I know it's not that simple. Talk to him once again and voice how you feel about him saying these things. Don't stand for it because you certainly don't deserve to be talked about in that way, you are worth way more than that.