You are not wrong to have helped your mom get her car fixed. He was sitting in rehab and you had real world decisions to make all by yourself. I think the first thing I would think if my AH jumped on me like that would be - what has he done? He's feeling guilty about something and taking it out on me. Maybe it's just the fact that he's not working, his addiction has caused financial hardship and he's not being a man and taking care of his family, i.e., pride.