Yeah, what the hell did Supes do wrong? Because he actually engaged the Joker? Cause he pissed him off?

Maybe Batman is just salty that Supes did a far, far better job of putting Joker in his place than Batman EVER has. I mean seriously, Joker will never come back to Metropolis after that. Supes didn't just beat him, he HUMILIATED Joker, and that's just about the worst thing you can do to an egomaniac like the Joker.