@Ty_next Judging by her reations, she's afraid of rejection, so much so that she pushes people around her so to never have any friends or give people a reason to be near her, in a sense it's the same problem Komi-san faces, but on a different level, as this girl knows she's a bitch, she does it on porpouse, and while that's a problem it's also the solution, as it's easier to change when you know what's wrong.
While I disliked her reaction to Komi-san on the last chapter, her reation to her own actions gave a sort of hint about who she is, so I waited before judging her on that alone, and I wasn't wrong... She's not a bad person, probably, she's just fighting her own demons her own way, probably because she knows no better.
Or, you know, not. This is just conjecture, but, well... This manga's genre is comedy, so is not THAT far fetched...