My WAW is moving out December 1st. She has signed a one year lease on an apartment and bought furniture etc. This is a more permanent step than staying with family and friends etc. But..I never fought the move at all. In fact, I made it too easy for her.
She also plans to move out "slowly" in December. I am allowing some of that, since we are going on family vacation at XMAS time and want to make sure that goes as well as possible. But even through December I am going to set boundaries. I am 100% guilty of letting her cake eat, but am finally starting to change that.
In January, I am going to still allow her access to the house in order to see the kids in their comfort zone, but there will be virtually no interaction between us. She claims she needs "space" and she is going to get it. I need the time to figure out what I really want.
If someone really does not want to be with us, I think it's best just to let them go. It's taken me a long time to get there, but that is the reality. Try to find an arrangement that works for you and your kids and still recognizes that he is human.
