Numbersaremylife There are many mental illnesses the share symptoms with bipolar, so I agree with everyone else that a Psychiatrist is the best route. If you want to stay in the relationship I would also suggest couples counseling.

I don't know if he has bipolar, but from what you wrote he sounds abusive. A person can be abusive and that doesn't mean they have a mental illness. I would also suggest individual counseling for yourself. I have been in an abusive relationship (I have BP, he didn't and he was the abuser) and it really wrecked my self esteem etc. I hope that helps.