Bruce looks confused. "Thirsty?" Listen, he not only is oblivious to references in their own time, and lost two years, and also he isn't up on the lingo for probably almost the entire decade he was gone. "Like thirsty for knowledge? But specifically science with me?" That kind of made sense. He knows he's missing something.

Bruce laughs, because he can't tell if Tony is being serious so he assumes he's not. Because that is insane. Also he's nervous. "She didn't say yes, she needs time. And even if she does, it'd take months of dating before that. A year even. People don't just move in with each other." He scratches his jaw and shuffles a little. He's uncertain, about the situation, but also about Tony's reaction. He knows Tony and Nat aren't on the best of terms, and his friend's opinion matters greatly to him. "Nat and I both have a lot of baggage to unpack, I'm pretty sure it's going to be a long uphill battle." But he wants it. It's the only thing he's wanted selfishly for himself in a long time.

He grabs Tony's claw, because it's the only way to get to his hand. "I'm not going anywhere, Tony. I wanted you to know, because I've never had a friend to share things with. And partly because I might be panicking."