It's nice to see Kaylee happy. Sometimes Zoë forgets that she's allowed to be happy unless she gets reminders from both Wash and Kaylee. And with Wash upset as of late, Kaylee's arrival is a help.

"It's the truth, but glad to see you smiling again." How can she ask what she wants to know? It's not like it's a typical, run-of-the-mill question. Best to just do it and deal with the issues right away. No more secrets among the crew. And if Mal wasn't there, it falls to Zoë to keep them all together. "Kaylee, what was the last thing to happen back home before you got here?"