Thank goodness! I felt like she had to die! The feeling that nothing was going right for her and no one truly cared about her unconditionally is so depressing. She is miserable chasing a feeling that can’t be reciprocated.
Either she dies or marries into another kingdom which her mother has no influence over.
I hope the ML feels miserable without her and her mother ruined. May her little brother be the crown prince and her half brother be made a fool.

Man I just read that the MC will die in the future chapters, I'll read that once that happens.
Because I love feelings of regret...