@GoldenStateW,
You are under no obligation to continue dating this girl just because her father is a jerk. In fact, you are not even under an obligation to keep dating her if her father is physically or sexually abusing her (although you should call the cops in either instance).
She has pretty obvious problems creating and enforcing physical boundaries on her person.
You have (presumably reasonably) asked her about it, and your concerns have essentially been laughed off.
Uh, why are you still with her, again?