That was the first time in his life Tony had almost been jealous of Bruce. He had somebody else to go through this with, even if they didn't exactly always see eye to eye. Tony just had his own stupid mind and his own self-doubts, but hey. Whatever. He was at least happy for Bruce, above all else - if anybody in this world deserved to feel like he wasn't alone, it was Bruce Banner.
"You have to consider that he's younger than you, though. In a sense. All the shit that you went through when you were a kid and a teenager and an adult is...not new to him, because you share, but he never experienced it himself. Maybe being out for so long matured him or...gave him time to think about other things than just being angry. The fact that you two are starting to care about each other instead of resenting each other is probably a good thing for everybody in the long run," he shut himself up by shoving food in his mouth, chewing thoughtfully as he looked out of the window at the unfamiliar city skyline. "Aside from Pepper, I think you're the first person I've been able to trust. You should know that, just in case- I dunno. Vanishing seems to be a thing that happens regularly and I've gone once. Might happen again."