This is just my opinion,
But i think it's very different when you are dealing with those who abused you(already a threat) and those who possess threats to you but havent done anything yet.
I cant say for sure, but she do get better when Amon is there to support her. And being the imperial princess, the emperor (somehow)protects her. So the nobles cant really do anything reckless to her. So she might think it's fine to fight back? Having amon and the emperor(somehow) as back up is reassuring. And all these few years, even the prince and other princess hasnt exactly done any major harm to her excluding the bandit the princess just hired.
Well it might just be loop holes hahaha
Well it is true that having Amon with her gave her strength, but either way she's just badly written lol
why is her personality so inconsistent at the beginning? like- she was removed from a very abusive situation where she was at the constant threat of being helpless to some very very creepy man which obviously would make any young girl like her consistently afraid for her life, then suddenly when the boy gives her shit she has the mental strength to fight back at him???? like, yes she’s been removed from that situation, but even inside the castle she is looked at with oppressive eyes and is still on some level powerless. i guess it could’ve come from that one panel long scene of her taking classes on etiquette and whatnot but it never dabbled into her growth to properly show that she’s been mentally reinforced for her to understand she is safe enough to start fighting back. additionally, we don’t know how long that one panel scene of her taking classes was so it could be from a week to 3 months long of classes she would be taking. but as the next scene follows up with the boy bothering her, it seems like it’s near the same time she arrives in the castle. maybe im being too critical but ????