Having Bipolar isn't an excuse to be a lousy human being. Your a person not his personal doormat.
Regardless of him having insurance or not ,, he can find help for his Bipolar, there are affordable medications.
Drop kick him and find someone that will love and respect you .. This guy ? he sounds like a massive jerk that is using Bipolar as a "get away with anything card"
I have Bipolar and while yes it can make relationships hard at times, but hes ridiculous. Dump him and move on
Welcome to PC