What I noticed is that she immediately turns and cocks her right fist long before he does anything the camera can see. He grabbed her right wrist with his left hand to keep her from trying to use it so she tried to punch with her left hand to which he countered with his right hand.
Not to excuse what he did but this almost looks like self-defense and I normally don’t sympathize with women-beaters.
Please see Post 60.
You not think he might have been goosing her..touching her without permission?