I am so confused with my sexuality right now.

Just had a sexual encounter last night with a man and I didn't like it one bit. He hurt me during sex, he wasn't gentle at all. The whole time, I wanted him to hurry up and finish so I can not be around him anymore. After he was finished, I didn't say a word and escorted him out of the home. I was in a not-feeling-it-at-all kind of mood. Just thinking about last night really blows my mood now.
This whole thing made me think about my sexuality and wonder if I really am pansexual. I was thinking that maybe I could only date men and date and have sex with women, but as I thought deeper onto that, I had a gut feeling that I won't get any arousal if I had sex with anyone in general. So, asexuality came to mind. Something told me that I'm not asexual and that maybe sex will only feel good if I have a real good connection with someone or my future lover, given that all my previous sexual encounters with men always end up with them finishing, but never me because it doesn't feel good. Usually, it'll feel like gentle strokes, nothing arousing, but then my last encounter happened and I don't want to do it anymore.

Then I remembered, 'pansexuality' means that you don't care who you want as your lover. This is going to be a really long journey...