While it's nice to see love given a fan favorite character, I don't think it works. She became a fan favorite because she went from megabitch to Saotome's #2 supporter; she had genuine character growth over the course of dozens of chapters and people ate that shit up.
I think, what could've worked better, is show that she was a genuinely kind individual to her other classmates and that it was specifically the introduction of a boy into the system that made her go into bitch mode. Granted, still wouldn't have been great, but I think I might have preferred that instead of trying to completely undo her original bitchiness.