Your husband sounds like a selfish d-bag. It would be one thing if you were refusing to try to stay stable, or if you weren't willing to see his point of view. But you've been giving your all into making it work, while he gives nothing - not even a hug. Like seriously this guy sounds like a ****. No offense as I'm sure you're in love with or at least were in the beginning. But as an objective outsider looking in, I can tell you that he's a **** with a capital D.

My bet is that he has been in this relationship for all the wrong reasons and now he wants to blame his desire to bail on you and his unborn child, on your bipolar disorder. That way he can play victim while actually being a selfish coward. If he does leave you, it doesn't like you would be losing much. Even though you will likely need to go through the grieving process all the same.