thisis - what are you doing to yourself?
Your abusive STBX came and gave you an anniversary card. I'd have made him FFing EAT IT!
You are carrying guilt for a relationship that has failed. it was flawed from the start, but nothing gave that man the right to abuse you. You may have, through your own experiences/upbringing/history allowed/enabled it somehow, but if your H were not abusive in the first place, you would not be here today crying.
Why ARE you still talking to him. it's NOT different, it's worse. You are allowing him space to buy you a card, that should have been done and dusted a long time ago, it's wholly inappropriate and tbh, I wonder if cynically designed to hurt you.
You are making this so much harder for yourself and your DC than you need to be.
you say MO is detached? in some ways she is. but she is not definitively detached, cos he still provokes a reaction, he can still upset, worry, bother. It's early days for her, but she will get there, in stages.
You will too.
BUT
As I said, this is not a free-wheeling plateau, this is a step, we need to keep up the momentum, the climb to get free. You have a long way to go. I have a long way to go, but I'm not going to sit there and cry over how sad his childhood was. I don't care what excuse he uses, I don't care even if it's valid.
The punches, kicks, comments, destructive comments didn't hurt any less cos he had a tough time did they? Where was HIS sympathy for YOU? Seriously, where IS it? To buy you a card IMHO was to upset, not to heal.