This is all very good stuff, especially church. Church was one of the first things to go when my W started wandering. If your W is anything like mine, there will be pullbacks. My W syas she is a "feather in the wind" and considers me to be a "rock". Another bipolar friend said "its like a candle in a hurricane". Her moods will swing; this is something that you will have to accept. You will have a desire to fix her moods; understand that you can't. Understand that she does not like the mood swings either, but must accept it too. Take solace that it is cyclical. I am still working on this, it is hard.
I am gunshy too. Its easy to understand why when their moods can swing so far, so fast. You need to be confident in yourself and be the man that your W needs during her hard times. Which may mean just leaving her alone and letting her work it out on her own. Be the "rock".