She Tore Him Up!
I know the bruises Slim had sustained due to Mitch's abuse was nothing compared to the bruises she'd given him in their final fight scene. I mean, his face looked like an extremely deformed side of blood soaked steak. He didn't look recognizable anymore after she was through giving him a dose of his own medicine.
I guess that's the fatal price you pay for being a psychopathic wifebeater, Mitch.
http://www.youtube.com/watch?v=qA9Byir_S1g