Steve glances at Natasha out of the corner of his eye, mouth twitching, but he doesn't laugh (not at first), and he doesn't make her talk about it. He'd like it if she talked to him more, but he understands well enough not to force it. After all, even if he doesn't say as much out loud, it's because he feels the same exact way that he gives her such a hard time when she pushes him to make connections, go out into the world, date. He's come a long way in the last two years, maybe longer than most people give him credit for, but it still hurts. And he doesn't like to talk about it.

He looks at his hands, nodding almost imperceptibly when she peters off. He hasn't even mentioned Peggy yet, or this new guy, Sam, but he figures commentary on what it would be like for Natasha should her dead husband show up wouldn't be appreciated.

The wormhole line is what finally makes him laugh. "Not quite. I met him. Q. He's the one who sent me back, but he made it pretty obvious that it wasn't going to be for good. And I'm OK with that."