Undyne? [Well, he wasn't thinking about Undyne before--there are a lot of other things to think about, plenty of things to feel angry and guilty about--but now he is. His mind stutters to a halt, caught in a loop. His gaze is very far away, like it sometimes gets when he's thinking about things that happened at home.]

--I dunno how many times I watched her die. [He's lost track. Even with the emotions so much stronger now, with all of them layered on top, it was too many.] Maybe I could have done something. I don't think I thought she'd win. Maybe in the beginning, but nobody could win against that thing, so--

I mean. She did. She won more than she lost. But you only have to lose once.

[So, that wasn't a straight yes or no, but Papyrus can probably figure out that it's a yes anyway.]