Peter's watching Loki's reaction and it's not an unusual sight. He's had people react negatively to the mention of Tony's name before. He's used to it, even if he doesn't love it.

Peter nods. "It is." He holds up a hand. "And before you get going, I'm going to stop you. If you plan to say anything bad about him, I'm gonna ask you to not." Because it sucks when someone trashes your friend.