Read up on humiliation and related subjects on verbal play, degradation, and the like.

But it you don't already crave or enjoy such... I have to ask, have you two talked about your interests? your limits? your compatibility?

Or has he taken you up and told you that anything he does is correct?

The issue with online when one has no experience is that one has no frame of reference.

I won't say to drop him, but I'm going to bet that you eventually will.
I will say that you need to know more about the lifestyle and the conventions (not rules,) of behavior (especially when dealing with someone so new.

So stay, read, learn, discover, ask questions... and tell us what you want and crave. It'll all help you understand yourself, because as you reveal yourself to us, you reveal yourself to you.

Understanding is everything.