"Mmh."

Mettaton concedes that he is still all those things...just not like this. Other than the love for snails, that was eternal and no change in form could take that away from him. Still, having her say nice things about him does rekindle his ego a little.

"I'm certain she could, though it would take far less time to find my old body and repair that, I think. If there's anything left of it," he says, somewhat concerned. "I guess I should explain some of this, shouldn't I?"

Translation: Does he have to?