Long time thing. My parents divorced when I was a kid and my mom got with him shortly thereafter. He was always beneath her but I think she initially got with him out of desperation for a place to go plus maybe her options were limited given that we only lived in the area for about a year at the time and she couldn't admit defeat and move back to where she grew up. This guy verbally abused my sister and I when we were younger because he's a low IQ, insane alcoholic and a narcissist. He also used to steal from us and would steal incoming holiday gifts to redistribute to his kids from our extended family. When I worked my first job as a teen, he showed up and asked for my 1st check which was for some reason handed to him and I never saw it. He steals from my mom and didn't work for most of the time they've been together (she got injured on the job a few years ago and he started working around that time, my theory is they get along so poorly that her being home all the time meant he is better off out of the house). He's also cheated on her at least once that we're aware of. She knows it obviously. There's nothing to defend. I hope his drinking catches up to him and kills him soon.