[McCoy didn't even fully comprehend that they were going to where his ~old flame~ was currently shacking up. He did comprehend Jim's pissy tone, and his 'I'm dealing with this by going cold shoulder captain on you.' McCoy stood.]

Jim. [He repeated, scowl deepening.] Stop it. You're- [He waved a hand in a way that would be dangerous if someone was standing next to him.] You're doing it again.