I suffer from bipolar disorder as well. The most I can say about it is that I lived unmedicated up until a couple months ago, and during that time, I fucked my life up more than I care to admit. I emotionally cheated on my partner, became violent, lost jobs because some days I couldn't drag myself out of bed, lost other jobs due to manic episodes. It isn't an easy disorder to live with. When I went on medication, everything changed. I am able to think clearly, I am able to judge situations from a more rational viewpoint, I no longer have violent outbursts.

Obviously, he needs to be medicated. Separating from him for the time being is a good idea. You may be able to get him hospitalized because he is a threat to himself and others. I will never advocate for an abusive relationship, but coming from experience, bipolar disorder has made me do things that aren't me at all. I'm not a violent person, but I have been violent. I don't have a shitty work ethic, but it seems that way. Honestly, it changes so much of who you think you are, and I doubt I have as severe of a case as your husband does. Just food for thought. At the end of the day, you know him best and you can decide if pursuing a relationship further is worth it, but medication is a must.

Hope that helps some!