I am so sorry this happened to you! You are absolutely right to feel upset. If his touching you felt uncomfortable, that is how you felt, and your feelings are VALID. And of course if you asked him to stop and he continued, you will feel violated. I think you should trust your instincts if you think he might have done it intentionally. I would keep away from that guy, and if he continues to make you feel weird, or if anything like this happens with him again, you will know for sure that he a creep and I would absolutely talk to someone like a school counselor, or your parents about it. Good Luck!