I cannot be seen showing such favor to others. I was not myself before. I cannot let that happen again.

[He may giving himself away a little now, since there's no true ire behind his words. He doesn't sound mad and the same sort of lustful viciousness he'd exhibit towards just a woman isn't present. Regardless, he presses on, and keeps things even and calm.]

Trying to befriend everyone will only hurt you in the end. I will hurt you. I will hurt you so badly you would have no hopes of recovery, so...

[Still, he can't quite tell her to stay away. She'll have to make that choice for herself.]

...so I really do hate you. That's the truth of the matter.