Welcome FitPrk3; I would suggest tracking your mood. I have found a great one online that also has a journal function that you can note if something triggered the mood (i.e. stress, what you ate, drank etc.) Here is the link: http://www.medhelp.org/land/mood-tracker

As far as your relationship, it may be a lot for her to take in right now especially her experience with her diagnosed mother. She may equate a bipolar diagnosis with cheating, suicide attempts etc. and may be scared. I think couples counseling is a great idea and I would also suggest individual counseling.

Educating myself on the illness really helped me accept it. There is a book in my signature that I would highly recommend. It's actually written for partners, family members of those diagnosed, so if your wife is willing it would be a great book for her. I hope you find this site supportive!