It really sux that you're having to deal with this. I am young, so I can't empathize too much. I am married now, but when I was dating, I always made a conscious effort to get to know my boyfriends' parents. I think it is very unusual that she is not making any kind of effort to get to know you. I am sure you would probably feel differently about the whole situation if you just KNEW her, you know? Maybe you can try to explain this to him in a non-confrontational manner.
Best of luck with the whole situation. Just remember that you still have your daughter in Michigan, and of course you still have Miss Sissy