The mother’s actions directly conflict with how her feelings have changed toward her husband, demonstrating how much of their relationship depends on secrecy. While that secrecy allows them to coexist without external conflict, it also means their relationship continues under false pretenses, at least on the part of the mother. Meanwhile, the girl’s return to her favorite novel shows a yearning to return to the world of her imagination that, before last night, was such a happy refuge for her.