He's blowing smoke and pushing your buttons. Tell me what judge would give custody to a man with a DUI over a stable wife? And he doesn't have the money for the lawyer to even make the argument. He just wants to make you angry because he was angry. He's starting to feel how unpleasant it is to be the rejected person. Doesn't matter that he dished it out to you for years. He doesn't like it when it happens to him. He was the wonderboy who all the women loved. Now he is rejected and sleeping in his car! And lucky to have the car at that!
