Throughout To All The Boys I've Loved Before by Jenny Han, main character Lara-Jean prefers to keep her romantic life in the fantasy world. Fascinated by romance novels, she's no stranger to love stories, but when it comes to her real-life crushes, she has a debilitating fear of what will happen if she tells them how she really feels. She is afraid of their reaction and of the possibility that they won't reciprocate. Her feelings end up being exposed anyway, though not by choice.
Of course, throughout the novel, she does not have to tell her fake boyfriend Peter how she really feels to have her feelings reciprocated. Through their fake relationship, she slowly learns how it feels to be loved, without even realizing it at the time. Only when she rereads all the little notes that Peter left her does she realize that she had, in fact, been written love letters.
Lara-Jean's story provides the reader with the main moral that everyone is deserving of love. It also shows us that you will never know until you try. After all, Lara-Jean and Peter would never have fallen in love if her sister hadn't sent out her secret love letters, and in hindsight, Lara-Jean realizes this.