aah, this is a fresh material, in football there's this term hate-watching, Ig in manga it's more like hate-reading, I really hate this girl, I just want to continue reading to see her lose
tbh, the only rather sane person in that group of three is tsubame, hope ueno end up with her, the manaka girl used to be bad one as well, so don't go that way, idk what's going up next tho
in different perspective, ig this type of manga is like a lesson, it demonstrates the kind of personality you might find annoying so you can learn not to be like him, I bet the author does hate the character more than any of us readers do