Hi Mr Mom - It is so unfair right now for you. Your W and OM are most likely working together as a team. Her anger towards you is so unjustified, but it is all part of cake eating - having the best of both worlds.
As others have said, you do need to detach, GAL and make yourself happy. However, you may need to take some legal protections in the meantime. It may be necessary to seperate some of the financial things and get something legal about her not being able to come and go from the house.
The 2 months before the hearing is not a lot of time, but you never can tell whether she might have some sort of awakening. I was much like you with the begging and trying to use logic only to receive anger back from my WAW. Towards the end of a year, she wanted back but I had decided that life was better without her as she had not changed and it would not have worked out.