Mettaton chuckles a little.

"That's fair, I'd say."

After all, it's not like their Real does much of that either, so it's something they have in common. That's probably too much of a morbid joke to make about a friend and Mettaton chastises himself silently. Then the mirror giggles and Mettaton's eyes narrow as he listens to their words.

"Refusing help would mean that I need help in the first place, and you are pretty mistaken if you think that I do."

Or you're in denial, like he is.