Something along the lines of Reddits AITA(am i the asshole)

Ill keep it simple, 1k+ rated game with a range of players from 2k downwards.

I am air right at the back Opti start(Map gen), my teammate next to me an 1800 takes 2 mexs belonging to my slot he does not even need them as he has enough so its not like he was short. his left me with 7 and him with 12-15.

I ask him to give them up i say they are mine, his response he doesn't trust me thinks ill lose air so he's keeping them.

I think screw that i didn't wait 10 minutes in the lobby the take a handicap just so he can have more mexs, so i reclaim and rebuild them for myself. He pauses the game and starts to cry about how a I'm stealing them and then quits the game causing everyone to quit and says I should be reported.

In my opinion this is rubbish, if he didn't want to play with a 1300(Me) he shouldn't have joined or the host should have set the bar higher.

So AITA here or was he out of line?