[Steve draws back when Tony jumps, momentarily reacting to the sharp surprise like he might have hurt the man. (And that is something that still weighs on him.) He frowns, watching as Tony seems to recover from the shock of contact, and waits until he's settled down.]

I'm fine. Better than you.

[Sorry, Tony, he's just being honest.]

I was going up to the roof. With all the excitement, I thought getting away might be nice. Did you want to come along?

[The question might be a little more than just an invitation. Steve is gently pushing him to agree. He looks like he needs it.]