Am I acting dumb or is my brother?

I was playing computer today and my brother starts say I am fat and says I run away from salads. (Which I don't because I love them and he hates them) So I make a counter insult like " At least I don play my PC for 8 hours a day." He gets angry but continues with his game. 30 Minutes later he changes games and while his game loads he plays on his DS. Me still being a little annoyed by his fat jokes say "Pathetic, he has to play a game while his game loads." So he gets angry and start distracting me from my get and says "Your Dead" when I die or "He was right there! You suck at this game!" So I push him and he starts to cry a little and hits me back and I hit him then he says "Oh so if I am you I can hit anyone whenever I want" I try to tell him why I do that but he just inhibits me and talks louder. So I stomp in to my room really pissed off about nothing and I am in trouble because I said "OMFG" (the long version). I hit him because he literally screams in my ear and says irritating and annoying things. Am I the bad guy here?

you were both incredibly immature, whatever.

Some answer. I am only 13 and I am hitting puberty or ending it. (i know for a reason..)

Well, the good news is you have lots of years ahead of you to grow up and mature, at least a little.

I was still angry when I wrote this.

he was wrong to say what he did, and yeah, you were wrong to push him. I understand how dealing with a sibling can be irritating beyond words, though. I'm 21, but I still have trouble with it. Both of you were unkind...but maybe instead of focusing on this one incident, and see if you can figure out the deeper reason of why you are both so easily upset toward each other. I've had some bitterness toward my siblings that I've had to (and still have to) work through, partly things they've done, partly things they didn't do but others did because of them. Sounds silly, huh?  But a lot of siblings have the same kind of issues. Maybe if you can find out a reason for the way you act toward each other, you can both start trying to not do things that will hurt each other so much?

 Hope that doesn't sound stupid...