Tony and Bruce were notoriously the worst about that particular drive. The puzzles. The nagging desire to know answers about everything in the universe and poke at it until it made sense. It led to their best work and their absolute worst. He's been careful here. There are a few things even in this limited space that tug on his questioning mind, but at least there's better people now to rein them in. Seeing the apocalyptic loss of half the universe too would make anyone think before they act.

"Apparently he wasn't as bad as socializing as we thought," Bruce murmurs, watching Rhodey warp the metal. Impressed but not surprised that he's good at being careful and controlled. "When I was gone we were on another planet, and he made friends there of his own." There's perhaps an undercurrent of bitterness, but it's difficult to be that toward someone who is essentially dead now. And petty.

He smiles faintly though, at the Ross reference. He also has a gallows sense of humor, if very understated. He also has trouble hearing nice things from anyone, glancing to the floor, wringing his hands together. "That's, um, that's very kind of you to say." And a little flustering, but it doesn't take much to fluster the shy scientist. Bruce shakes his head. "You did what you thought was right. Sometimes that means working with something wrong." He is the last person to judge anyone else on their choices. "I gave Tony a hard time about it, when he first told me, I feel bad about that." Hearing his only friend worked with his greatest enemy was difficult.