Riddler looks vaguely outraged that Ed got a kiss, but he didn't. "What, he gets affection and I don't? I've done everything I can for you, every step of the way, and just because he has a minor meltdown about the fact that our scars from the past include literal scars and a split personality disorder among other things, you're going to cut me out?! Oh no, no, this does not happen again, Oswald!"

Fast, fast than even he expects, he snatches up the knife on the carving board, but he doesn't point it at Oswald. He slides it so the point is digging into his own knee.

"You don't get to pick and choose between us. You don't get to care about him and not me or I will carve him up, Oswald! You don't get to only love him!"