When the Immature Cross The Line

I am a normally calm person, but one of my pet peeves is people who believe that they are better then someone else because a ONE class is school. The kid from my last post and I have not spoken since he got into said class, this is not because I was jealous in any way shape or form it is, because he flaunts that he is in this class ONLY in front of me. SO today I walked into my math class already stressed out because tomorrow is the PSAT and also because I am terrified that I am failing my journalism class, and to be courteous I said hi to him and he replied, "I thought you weren't talking to me because I am smarter then you." Which one is a ridiculous accusation and two is a complete and utter lie. So I gave it to him even though what I really wanted to do was punch him directly in the face cause I know for a face that I could knock him out. However, I realized soon after that for verbally attacking him and not being physical I turned out the winner. I have no plans to talk to him EVER AGAIN and I really and genuinely angry about what he said and don't plan to talk to him for the rest of the year!