Sometimes, SS, the leaver feels what they are doing is "wrong" and feels scared as well. It doesn't always seem like that, but it does happen. They do things to try and make you feel better, but really they are trying to make themselves feel better about themselves. Depression is often part of that from what I've seen.
I think you're absolutely right though, to do things for you that help you. If that means no contact, then no contact is what you need to do.
I hope he stays in that mode of being friendly. It's not likely, but it actually is easier in the long term.
Keep your chin up.
AJ
"Our lives begin to end the day we become silent about things that matter" MLK Put the glass down... "Yesterday I was clever so I wanted to change the world Today I am wise, so I am changing myself."