Out of recognition

Rita wants to change her name because according to her, it represents the person she once was. Now, she has grown up and has been educated. She is not as innocent and ignorant as she was before starting the course. She knows what clothes to wear, what wine to buy, what plays to see, what books and papers to read. She is so independent that she feels able to do without Frank's trying to teach her more. So she prefers another name according to her present state.