Some people are just crazy - they have a need to be adored even if they are the biggest assholes on the planet (I married one, I am fluent in asshole

). Even after lying, stealing, cheating - he STILL thought if he played nice I'd forgive him and walk away with nothing in the divorce. Fcker has no goddamned clue who I am
This guy knows the BS you put up with, knows how to manipulate you and con you - b/c he's done it before. In his mind - you can't possibly change. He sees you still as that girl that let him beat her down and make her feel worthless. (or whatever extent that fits how it went down - some of us sink further before we fight back).
He has no idea that by packing up and leaving, you left that girl you used to be behind and he has NO shot with you anymore. Just ignore him, don't talk to him, just let him go away.