I apologize ahead of time if my advice is not as good as it may normally be; it is therapeutic for me to come answer these Asks sometimes, and right now I could use some therapy.
To answer your question – three things.
One, I personally am not an advocate of “hookups” in general. I guess some people this works for but I recommend you get to know somebody well first. You will mitigate stuff like this if you talk about it long before it happens and you should also know if he is the type that will respect you.
Second, the guy is douchebag. I have never understood guys that re-ask a question on sex. Or re-press an issue. These guys are just assholes trying to prove something to themselves and if your guy keeps pushing you on a topic and can’t handle the answer, kick his ass to the curb. He deserves to learn a lesson.
Last, you shouldn’t feel bad about yourself. You should feel empowered. Some dickhead tried to force shit on you and said No. That is a time to be proud. Being submissive, assuming you may be, doesn’t mean giving your will away to some disrespectful prick who never earned shit to begin with.