>>723041821
NTA
I think she did care about him as someone she respected and liked hanging out with, but it wasn't romantic between them. Danganronpa makes things like that explicit, if that's what it intends, but Sonia and Gundham's relationship is left ambiguous with no confessions or other confirmation. I suspect Gundham would blush at anyone complimenting his hamsters, and a girl thinking hamsters are cute isn't evidence of much. The writer had them specifically interact in that way for the purpose of the Kazuichi incel gag, and to give Gundham's execution more weight because otherwise he wouldn't really have a connection to anyone.
That said, I think it's fair to interpret it as romantic too.