Me and one other kid in a discord always argue back and forth over stupid things because he takes a lot of it away too personally. After the argument was entirely resolve, he acted like he didn't partake in it and was a third party just watching the conflict. To prevent another petty argument, I muted him and when other people in the call argued that it was equally petty to not hear him out on why he wasn't part of the argument.

AITA for muting him in order to avoid another petty conflict?