Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input:   First off, I know what most commenters will say if I don't address this. Yes, I know how to take a joke, but this time I think he crossed the line.

Background info: We're both in highschool and we've been best-freinds for about five years now. If you were to compare our outside characteristics with cartoon characters, we would match Mordecai and Rigby (him being Mordecai and me being rigby) and this means he gets more attention from people for being Superior to me. I don't mind this much, but this detail is an important part of the story.
  During lunch, we sit with three girls and another friend of ours. One of the girls we sit with has a thing for my best friend and vice-versa. I knew of this beforehand. (I was the only one who knew)

Friend I called a dickhead: C
Girl that has a thing for C: G
Me: me

  On with the story. We were at lunch, having a good time as usual. G and C start flirting, then C cracks a joke. I laugh like any person would. G laughs too, but when she's done, she starts laughing again. I asked her why, and she says "you make the funniest laughing face ever". C brutally elaborates by saying "Yeah you look fucking retarded when you laugh", but I brushed it off by saying "Damn it really be like that sometimes". This caught me off guard and not gonna lie, it kind of made me mad.

  This is the embarrassing part. I have an underbite and a pretty large tongue, so I'm bound to spit sometimes when I talk. I don't spit that much when I talk, but C likes to point this out Everytime it happens. Me, G and C were having a conversation, and when I spoke to C, I accidentally spit on his thigh. It wasn't even that much either. I'd say a drop smaller than an ant landed on him. C raises his voice at me and tells me that I accidentally spit on him. I tell him I can't control it, but he proceeds to tell the whole group I spat on him. This is when I call him a dickhead.

  When I call him a dickhead, he gets very offended and says "bro what I didn't even do anything to you" and I proceeded to tell him everything he's done to me the past week. (Yes, he's done a lot more to me than raising his voice at me.) After I gave him a list of times he was an ass to me, he tells me that I need to learn to take a joke. G tells me than I need to take a joke too, but I'm guessing they failed to realize that all they did to me for the last week was gang up on me and insult me every chance they get. I stay silent for the rest of lunch.

  I love C, but he can get out of control with his "jokes". I consulted with our other friends about C's antics, and they all agree with me, but I still feel bad for calling C a dickhead. I may be too emotional, but I'm not sure. What I'm sure of is that I know people see me as inferior to him, which just made it hurt even more. I know that C was just trying to impress G, but he could've done it differently. 

  So AITA? 

calling my bestfreind a dickhead for jokingly insulting and judging me