"Book of Love" by Jimmy Eat World explores themes of love, uncertainty, and self-discovery. The lyrics depict a relationship where the narrator tries to overlook the small issues and stay focused on the love they share. However, there is a sense of distance and uncertainty, as if the love they once had is slipping away. The song suggests that the concept of love, as portrayed in books or stories, may not always reflect reality. The book of love is seen as a fiction, written by those who are lonely and searching for connection. They try to do their best but end up learning things they should forget. This idea implies that the narrator is questioning the authenticity and value of their own relationship. The lyrics also delve into the idea of planning the future of the relationship, pondering who will stay and who will go. There is a sense of hesitancy and fear of facing the truth. The narrator desires honesty but is afraid of the consequences it may bring. They have been alone for a long time but never realized it until now. Ultimately, "Book of Love" reflects on the complexities of love, the fear of facing reality, and the journey of self-discovery within a relationship. It suggests that sometimes it's necessary to confront the truth even if it's unsettling.