It is. To miss someone so fervently while knowing that they're better off not here... it's an odd mixture of selfishness and selflessness.

[He shakes his head.]

I've never done well with selflessness, myself.

[He looks to the device and smiles.]

I suppose in my grief I forgot my manners. My name is Mettaton. What's yours?

[It's a much more subdued introduction than he usually goes for, but he's not feeling up to his usual theatrics right now.]