As a man who has had al the things you are describing, and has fought this for 2 1/2 years, if he doesnt accept this in his heart, he is a lost cause. It took me hitting rock bottom, to see where blame truely lay. When i accepted that it me that had the majority of the problem, then i could move forward with my treatment.
But he has to see where the problem is, and what you describe is clasic BP II, hypomania/mania type behavior. Try to get him to go see a therpast, and maybe somone who isnt close to the problem can help him accept this is what he is.
With treatment, life does get alot better. A whole lot better. it's not perfect, and there are still issues you ahve to deal with, but with the right meds you have an actual fighting chance to beat this thing.
Good luck.
Bill