It wasn't even a good joke. So Tony really didn't know why he smiled over it anyway. Maybe just because he imagined Steve riding one through a portal and it was -- you know. Kind of great.
"I didn't quite ask, but we knew who each other were and he didn't seem all that confused over my room full of Iron Man suits and ... other obvious things," Tony said, a little awkward. They probably should have talked on it. But it'd felt kind of obvious. "But I think he's like my Pete -- it's not public knowledge. So don't throw him under a bus in public."
Yeah. They could go get the churros. It wasn't like Tony was actively avoiding Steve. He was just. Being careful, was all.