Every example sounds like abusive behavior. Your instincts are excellent and you should honor them.

It's never acceptable to hit anyone for any reason.

Touching her where and when she didn't want to be touched is abusive behavior. It doesn't matter what his hand touched.

Getting upset when she wouldn't kiss him on the mouth is more evidence of inappropriate behavior, inappropriate expectations, poor boundaries, and emotional manipulation -- he was attempting to guilt her into letting him do something sexually inappropriate.

Predators like this, they benefit from us thinking "Well it's not sexual, he didn't touch her there" or "It's not sexual, I didn't see him get sexual satisfaction from it." But it's all wrong. It's all abuse. Police and family services would agree.