"She's at home now." They don't offer it like a real answer. It's not. There's no way of telling if Toriel returned home from Vista City, or if she hasn't been yet, or even if that was some weird timeline of Flowey's now long gone. It's just the only thing they know about this, about her, right now.

They don't know enough at all about this. It's fine. They'll work it out like they always do.

Weird dreams are unfamiliar territory, so they're taking pains to make sure they remember what they need to. Apparently that consists of taking notes in their phone. It keeps them from having to watch Sans avoid looking at them too. "We'll come get you," they say, as casual as if they were promising to pick up a friend from school.