Man, I can relate to your feelings here. My W and I are in a very similar sitch. We have not filed yet, and my W says her PA is over, but I still find out that they talk from time to time.
But, wow, my emotions change daily, even hourly. In the mornings, I am pretty wiped out. Thinking what are we doing to our kids, home, and family. Then, as the day moves on, I am thinking I am a fool to think that I can ever trust her again.
Roller coaster... Not sure when this stops (it would help if I could make a decision..., but with this ride it is hard...).