So class is awkward and I feel used

So, this guy and I were playing truth or dare, and me being the moron I am, I chose dare. The dare was to give him a..well blow job. Ever since he's been making jokes about it and everyone knows about it like in class. One of my friends had said something about preferring a visitor over him and I agreed. He then proceeded to say "I'm surprised you can speak when your mouth is full." I slipped and fell at one point and heard him tell everyone, "look she's on her knees again." I don't know how to feel about it anymore. What do I do??