How the fuck was he not expecting that Jim'd show up at some fucking point? Has Jim completely misread whatever it is that's between them, or Bones' estimation of Jim's intelligence? He's all anger/dismay/worry/fury/anger as he follows Bones inside.

Is Bones moving slower?

Jim knows his intuition is a thing. Always been a super power of sorts. He also knows that if he second guesses everything, he'll get it all wrong, so he's not gonna jump at every tiny signal.

"Mission is fine," he says tightly, plonking the bottle on the table and stowing his bag in the corner. "We dealt with the Klingons. Spock has the conn for now, and he can handle the next assignment. I need to know why you're here, Bones."