I understand why you wanna drop it bcs i too wanna drop it. I just think you're quite in the wrong though. You're not looking at the deeper side of the story. The FL is angry at her so called parents because they treated her like she wasn't part of the family yet called her family. They labeled her as an illegitimate child and did not bother to tell everyone that it was false, so she had to suffer her entire life being looked at as different and low because of her status. If you read the manhwa and actually understood it , you'll see in some parts where people literally did not gaf abt the FL specially in the early chaps where her dress got wet by wine. You can see how nobody even came up to her to try and help her and so. That's because they see her as an illegitimate daughter and they what she's trying to point out. She had to suffer her life because her parents chose to be insensitive. As for the part of her Falling down the stairs, it was an accident but you can't deny that her siblings were literally bullying her and when she woke up she was met with them being worried. So it's obv that she's afraid of her family trying to get close to her all of a sudden after all that they've done. She feels like they have some sort of ulterior motive that's why she always reject their efforts in getting close. If you think she's being too sensitive and immature, then you probably lack the abilty to understand the depth of s characters emotion. You simply take a look without so much understanding and then go and rant about what little thing you know.
The story was good. At first I really like the fl but as it progressed I'm finding the fl annoying. Especially the part where it was revealed she was not their daughter. She just basically disregarded the love her parents gave her all throughout the years. （￣へ￣） Sorry but IT WAS HER FAULT. She is the one drawing a line between her family. She is the problem, she whould have opened up to her family or sibligs instead of whining at the end and saying she suffered. I mean gurl grow up you're not the only person in the story that is suffering.SO UNGRATEFUL if I must say. Regarding the topic of her being pushed down the stairs by the twins, I mean it was clearly an accident and there was no intention to make her fall down the stairs. The twins surely regretted their actions as. So yall acknowledge the concept of Change/Growth. Lol nobody stays the same. I don't see the need for so much hate for the twins (●'◡'●)ﾉ .