Scaramouche was your bandmate, and you found yourself arguing with him because of something small.

And then, there was a show, so you, Scaramouche and your bandmates quickly go to the stage.

You play the electric guitar louder than Scaramouche's drums, and Scaramouche notices, and he plays the drums louder too, and your bandmates were confused on why the both of you are doing this.

It's clear the both of you are pissed with each other.