If Jamie catches the bitter note in that laugh, he doesn't comment. There are some things that it's better not to push on.

"I'd not mind, if..." He trails off for a moment, blinking a bit as he catches a brief glimpse of Kaylee leaving with Kang. He's not thinking entirely clearly at the moment, so it hasn't quite registered yet. Give it a bit. At any rate, he still needs to check on Billy before he leaves him in the care of Katara and Renne.

"If you'd not mind waiting for a minute? Ye don't have to, though."