Maybell, I'm sorry you are hurting. I get it. For a while, I found myself being sort of "phony" nice to WAH. Hopefully in a not very obvious way, but I knew in my heart I was acting. And then, when he left, I would give him a not - so - nice gesture on my side of the door, mutter "@$$ h0le " under my breath, and then put that anger in a separate compartment in my mind and move on.
And now...I don't feel that intense anger so often. But it took a while.
