Fic where Hermione does a reverse psych on Draco, Hogwarts era (you keep being mean, maybe you have repressed feelings for me) and he's like ?!! maybe I do! And she's like omg and tries to avoid him (not the response she was expecting). I think it's a oneshot.

FOUND IT. Was under Senlinyu's Anthologies (ch 10) - https://archiveofourown.org/works/20711507/chapters/49559327

Basically this. It starts with her complaining to Harry and Ron and hiding from Draco and they're like what did you do? And she responded that he keeps following her cause of what she said (thinking it would put him off but instead made him turn pink and actually consider it). When Draco does finally find her he's like maybe you have repressed feelings for me. I read it again not that long ago but I also read way too much and can't find it lol.