[His grin might be a little bit tired around the edges, but it's sincere. He can roll with a subject change. He's a champion of not talkin' about stuff, so when he does, at last, trot that shit out to address it all direct-like, he kinda feels like he needs to sleep for a week.]

Hey, uh...don't sweat it. You and me might be the only two to really remember anything. Gotta watch each others' backs, yeah?

[Great job he did with that, both in his iteration and in hers, huh? Mettaton dead. Everyone dead. An evacuation doomed to fail, unless Alph pulls somethin' risky and untethers things from their brane just a hair -

But hey. That's purely theoretical.]