Hi. From the context of your question, we can see that you are referring to the book "The Diary Of a Young Girl" which is the diary of Anne Frank, a Jewish girl who spent three years in hiding with her family and other Jews, during World War II.
At various times throughout the book, we can see that Anne and her mother cannot have a good relationship. Anne treats her mother with a lot of coldness, frustration and anger. She treats her mother like that, because she is criticized by her mother and does not feel that she is loved by her, as she always behaves indifferently and with little love.
However, with Anne he feels very bad when he realizes how he treats her mother, because deep down, she knows that the love between them is great and she is very afraid of what could happen to her parents.
