I had a lot of these mixed signals in the beginning. I truly believe in most cases that the WAS does not want to intentionally hurt the LBS. Especially when you have a history with kids involved. I think a lot of the unexpected hugs, favors, and good gestures from my ex were more of an apology for what she was doing to me. In most cases, it was behind my back at the time. It was compassion mixed with a little guilt. Very confusing for me at the time.
I think this back and forth/cold and hot is pretty typical. The thing most will tell you is not to read to much into it one way or the other. Don't pin your hopes on it, but don't let it discourage you when she goes cold in the other direction.
"It is curious that physical courage should be so common in the world and moral courage so rare." -Mark Twain
