Although Natasha doesn't want to actually encourage Tony when it comes to the way he tries to pretend that everything is always fine, his response still gets a smile out of her. She can never really be upset with him when it comes to the mask that he wears. That's a level of hypocrisy she's simply not comfortable with. Tony isn't transparent, not exactly, and when he wants to hide something he can get away with it, but if it's something that's really distracting him... that's when he sends up the red flags that Natasha notices. She wouldn't be so concerned about him if they weren't in this place. In reality, Natasha wouldn't even be speaking to Tony if they were back home, not after what happened with the Accords. Not after what he had said to her before he sent her running without a show of concern for her well being.

But after seeing him in that lab, everything else seemed so minuscule. Pointless. Irrelevant.

He's cold when he's hurt, and he's boisterous when he's upset. Natasha knows enough about Tony to know that he cares about her. He has to, at least a little, and that's good enough for her. "I miss your cars too," she chimes in with a small grin, looking up at him again with an easy wink before her smile starts to fade away. "Because we have no privacy here? That's not something new, though, I think both you and I know how to function in a place like this." It's not a good thing, but hell. It's a thing.

"And tomorrow we'll go back to our every day lives." She finishes with a sigh, her expression turning tired as a hand moves to remove a stray thread from his collar. "Pretending to be something that we're not and trying to figure out exactly who and what we are in this place." Her stare seems to go distant for a moment. "...Maybe it's not that different from home after all, the more I think about it."