Ah, so it is true.

[His eyes light up at her words, and he completely ignores the fact that she's asking him a question at all, because of course he didn't hit his head. He can't exactly get a concussion, now can he?]

Friend of mine informed me that time doesn't progress where we've come from while we're here. Now I suppose I have proof! Isn't that convenient? You haven't had to miss me at all!