Alright, I've binged the 8 available chapters so far, and I already grew tired.
I'm sorry, I don't care how much "cute" she becomes in front of him, she is the one who refused to make a move on him, told him that he should just forget his crush without any reasonable explanation because she was jealous, then went on to spend who knows how many months ignoring and even insulting him to his face, all because she couldn't get over the fact he wasn't in love with her.
She only took action because someone else that has a much better chemistry with him and actually respects him showed up and her friend kept pushing her towards the right direction, but even so she's just trying to present herself in a manner she thinks is desirable instead of addressing the actual issue - that she liked him and was hurt when he confessed to his crush but decided to keep it all in and make it his problem.
She is not a good romantic partner for him and the story being about him realizing her "cute" traits and slowly falling in love with her isn't working for me. You don't fall in love in someone just because she's cute, a relationship works because you're romantically compatible and both sides put in the effort to make the relationship work. If he were to go out with You, I could totally see the relationship working, but with this petty girl, I can only see her making the same mistakes as she did during the prologue and making the guy's life a living hell by keeping it all inside and then resenting him for not reading her mind!
I'm dropping this, the main heroine tires me on an emotional level!