Thanks for the responses, much appreciated.
My wife goes to see her doctors regularly - she's actually very good about going to the doctor when she's feeling off, and she has been vocal about the suicidal thoughts, so I was able to keep her from doing anything rash, basically suicide watch for the last few weeks. It also helps that she has a couple members of her immediate family who have been dealing with BP for decades, so the non-BP members of her family are very good at helping with these situations. The meds have been shifted around quite a bit in the last few years because they can't seem to find the right balance. She does seem to be in a better mood lately (new meds), but in the back of my mind, I'm not able to accept it because I know this phase will pass once again. We haven't tried marriage counseling, but I honestly don't know if I want to even try - I know that sounds harsh. Maybe I'll rethink it. Part of my problem is I have the sort of personality where if I decide something isn't beneficial or worthwhile, I kind of shut it out. Maybe it's the OCD? And also, let me just say, I have the utmost respect and admiration for anyone dealing with this illness. I know it takes a lot out of you guys - I see it everyday - just wanted to make sure I didn't seem like the ultimate whiner here.
Anyway, thanks again...we'll see how this weekend goes.