Well you don't deserve her, but perhaps if you treat her well she might stick around.

Seriously, Best of luck Bipolar!
The thing is if you learn to consider her happiness before your own, you can avoid most of the pitfalls out there.
Don't hold a grudge, no matter what. Remember, she believes she is in the right also.
Never stay angry, go to bed angry, let her go to work angry etc. If you truly love her it just eats both of you all the time your apart. And its just that much harder to resolve later.
When in doubt, even though you "know" your in the right and have nothing to apologize for. Say your sorry, and say it first, and mean it. Just accept that to keep that wonderful woman in your life your going to have to do it sometimes.
Besides, making up after a big fight can be one of the very best parts.

Saying your sorry stops the pain and starts the healing.
I also have to agree with DREDIOCK's post. He nailed a lot of it.