Cyrus raises his in return, with the same self-parodying smile - See? We get it.

"Panem forever." That with no little irony. He drinks, and is satisfied - this is the way it's supposed to be.

"...Hey-- I didn't mean to sound so... suspicious, I guess. I wasn't serious." A smile that's much more real-- "We're good, right?"

This, too, is part of the pattern. Stephen's always hated it when Cyrus is upset with him. Disapproval; guidance; apology. That's the way these conversations always end, whether it takes them minutes or days or weeks.