In act 2, scene 2, Anne and Peter meet as though they are on a date. Anne is worried about Margot feeling left out, so she asks her sister if she likes Peter. Margot says that she doesn't like him in a romantic way, but she would like to have a boy to talk to sometimes. Margot tells Anne not to feel guilty for liking Peter. Once Anne understands where Margot stands on the idea of Anne bonding with Peter, she wants to find out where Peter stands concerning his preference for either sister. Anne directly brings up Margot in her conversation with Peter as follows:
"You like Margot, don't you? Right from the start you liked her, liked her much better than me. . . It's all right. Everyone feels that way. Margot's so good. She's sweet and bright and beautiful and I'm not."
Anne is fishing for information about Peter's feelings because she is self-conscious about her behavior compared to Margot's. It's not her fault that she compares herself to Margot, though; she learned how to do that from her parents and the other adults who tell her to be more like her sister. Anne not only wonders if Peter likes her more than Margot, but she also wants to know how much of a wall to put up between her and Peter so she won't get hurt in the future. Remember that she is also two years younger than Peter, too. She hasn't dated much, so she is bound to have a few insecurities.