Hello, I've been married almost 19 yrs and my husband was diagnosed in April as bipolarII (but I'd been trying to get him to go to a dr for years because of symptoms I believed were bipolar) when it was at it's worst my husband also said the same things your husband did and he moved out only to want back after 2 months, then he was back 3 months, left again and wasn't even gone 2 weeks that time when he admitted he didn't know what was wrong with him and he wanted back, at that time we did some marriage counseling and a retreat type thing that helped a lot, but at that time I knew in my heart he was bipolar but he didn't seek help until he got "bad" again this March.  So my guess is your husband will want back and I've also found selfishness to be part of the bipolar, and I've read that as well.  Bascially until the bipolar person is "stable" it can be a roller coaster........so buckle up!  Good luck and I hope when he starts meds it will help and hopefully he'll talk with a doctor so he can figure out what he wants.  In the mean time take care of yourself and decide what it is you want, you may find you don't want to ride the roller coaster.  Take Care!