Puzzling over those questions makes him miss his brother's dizzy spell, New's concern. But that tone of voice, that admission, those stand out too much. Papyrus peers at him again, knowledgeable enough to be suspicious.

"All of... what? Tousling with vampires, sure. But, I suspect... that's not what you mean."

If he means all of this, being in the Carnival at all, then... Will Sans try to go back, home away from all this, and risk losing his memory of all this stuff in the time loop?

Papyrus shivers, and readies himself to put on a brave face if his brother says anything like that. It might take a lot longer, but somehow he'll find a way. Even if it's just him searching!