My W still wears hers, too. I don't know why either. Every day I expect it to be gone.
I'm glad you had a good, friendly weekend. I'm also glad your not reading much into her friendliness. It can turn into nastiness in a heartbeat, as you well know. Enjoy the good times with no expectations. Hard to do, I know.
Concentrate on being a great Dad and hang in there.
I really wish I had some words of wisdom. You're getting great advice from some good people. Just know that I am following along and I understand.