RTL - Just to give you a little solace, my brother had a terrible divorce about 18 years ago where his W acted similar to yours being very hostile and using his son as a bargaining chip. He eventually ended up getting full custody and is now remarried to a very good wife and is extremely happy.
I believe from everything I have read from you that things are going to get better as time goes on. I think as soon as the custody arrangements are taken care of, you will start to feel some relief.
I find it weird to read about how most people are talking about taking a loss on their houses because of the housing mortage problem. Here in the Portland area, we dont seem to be affected by that because house prices seem more inflated than ever. I suspect when I get my appraisal on my house, I am not going to like it as it will be higher than I want (meaning I have to pay my W more for her share).