He's apologetic as he picks up on it, closing his eyes and holding on a little tighter for a second. He knows she won't blame him for having a bad day, but still. He tries to keep it together, as best he can.

The fact that they're mostly okay is a relief though, and Steve relaxes a little more, leaning backwards into Bruce and almost pulling Natasha along the way. Everyone else matters, both the others that have been through similar things and the ones who haven't -- they're working together, fighting together, or else he understands why they can't and he's fighting for them.

But these two? They're family, as far as he's concerned, and he worries about them, cares about them much more than anyone else.