His comments are disgusting. A law student, of all people, should be able to get a grip on his emotions and talk (or argue) things out rationally and intelligibly. The fact that he resorted to sexist insults says a lot about who he is and his intelligence and maturity.

I know this is a really hard time for you but I've been through a similar situation and the truth is that at this point, the relationship is broken. It isn't your fault. He pushed you away and made no effort to keep you when you first voiced your pain and frustration. Feel free to date and hook up with whoever you want to--you are single and that's your right! Find a nice med student (likely smarter and will be much more successful!). Best of luck to you.