Responses
The reason why she did not visit her brother was because of their father. She was cursed/poisoned by her father( the flower on her wrist),if she showed herself in their house,her father will learn that she's in good health. If she wrote a letter,her father might intercede it. The father is greedy and has lots of dogs to work. I feel sorry for the brother,he truly cares for FL.
She doesn't even show an ounce of concern for her brother. Yes, she may be powerless, but ever since she got married, she hasn't once thought about her brother or considered what the Duke, her so-called father, might do to him, knowing that she's from another world. She should know the content of the novel.