Going to speculate a bit here. My opinion only.
He may be doubling down on being Mr. Nasty because he has been down this road with women before, and is sensing that you don’t play anymore.
My addict sib had a series of relationships with women, post divorce.
They were usually a bit older than him, let him move in with them very quickly, and supported him until they got tired of his bumming around and not contributing.
That is how my mom, unlucky person that she is, got him living in her house.
Did I mention that if there was a moocher of the year definition in the dictionary, there would be a picture of my bro?
Yah, time to throw this one back. He isn’t worth it.