[ So...not a good time to mention that there might've been a hypothetical kiss under a sprig of hypothetical mistletoe and there's a not-so-hypothetical date that he still technically owes Vanya after the auction at the Gala? No, yeah, he didn't think so. ]

Diego, seriously? You think I don't know that? I'd say the same thing to you except that I know my sister could do a lot more damage than I can, if it came down to it, but more importantly? I don't expect to need to say it to you. I kind of wish you didn't feel like you needed to say it to me, either... Especially since it's not even relevant. I hang out with Vanya like I hang out with you.

[ ...not exactly? He hangs out with Vanya more and they talk about deeper sorts of things, but that's for sure the wrong thing to say. ]