I think it's a huge step in recovery when we can see the humor in a situation like this. If you can just smile and let go, then you're not giving IT any power in your life.
You seem to be doing well, setting boundaries you can live with and taking care of yourself and kids.
Your AH? He's going to do what he's going to do.... and hopefully you can continue to listen and not let it negatively affect you
HUGS
Cats