His reassurance wasn't actually that reassuring because it shouldn't have been about 'picking the right one' it was about not telling anyone she cared about where hell she'd gone. Mostly it was a habit from her days of disappearing with the Young Avengers and not letting her mom or anyone even know, like a defense mechanism, like what they know couldn't hurt them. Just seeing how Tony was right now, it was really obvious that that was untrue. Not knowing had hurt people she cared about and nothing Tony could say was going to fix that or make her feel better. She was still a bad friend and pretty much a complete jerk. No use trying to argue it, though, not when there were still things she needed to know.
"Where in the city?" Cassie pressed because that answer was really vague and kind of unsettling and why the heck wasn't he at the Raft with the rest of them? If he checked in maybe she could find a way to radio him; that seemed to be the only way people were communicating these days and it was so old school, Cassie never thought she'd miss IMs and text messaging so much, which was stupid to even miss when everything was so crappy but the small things mattered sometimes. She'd already made up her mind she was going to try and talk to Kate, too, one way or another. Sneak into the communications room sometime and hijack a radio for a little while, she could totally manage that.