Narc does really confusing things.

He walks away from me and plays the silent treatment because he accused me of not caring about him. When I go in to talk to him he pretends to be asleep, telling me he won't talk to me if I touch him at all. He then takes me wrist and bends it backwards, pushes me and continues to ignore me. All because I made a joke about something. I don't understand the thinking pattern here.