I'm so sorry everytime I post this to a spouse looking to help the person s/he loves most. There is nothing you can do to help if the person will not help him/her self.
You can't protect her from yourself, but you CAN protect your children from her and love her with BOUNDARIES.
Boundaries are the essential key to a relationship of any kind with a bipolar person. My SO is wonderful and supportive, but if I did any of those things, our relationship would be over.
I really MUST go to bed now for my own health, but I wanted to leave you at least the beginning of a reply tonight.
Take care of you and yours!