Peter doesn't say anything. He'd always assumed that it was because they weren't close enough (what Tony had said) or that Tony wasn't big on hugs (a definite possibility, too), but he never considered it might not have been a great day for Tony.

It probably should have. They were fighting Tony's former allies. That couldn't have been easy. But somehow, those details managed to slip his mind, lost in the excitement of a new suit, a new country, and a new fight with the Avengers.

"It's not important," Peter insists. "You need any help with that?" he gestures to what Tony's working on.