He could guess, couldn't he? Perhaps that's why his demeanor doesn't change at the reveal, receiving her statement with the same frankness with which it was given.

I had hoped...

Sans cants his head to the side, thoughtful. He filed the statement away. Something to bring up later, when he felt more confident he'd get a straight answer.

"So you're giving them dignity."

It's not really a question, more an observed fact. He respects that, even more than his even tone demonstrates. Embracing the monstrous didn't come easily to humans, in his experience. It starts the gears turning, eye sockets narrowing just slightly in curiosity.

"Sorry for the bluntness here, sweetheart, but... why you?"