Luce is instantly drawn to Daniel; he is mysterious and aloof, and he feels familiar to her. He wants nothing to do with her. She has to find out what Daniel is so desperate to keep secret, even if it kills her. Spoiler, he’s a fallen angel.
Daniel is rude to her from the get-go and shows no interest in her, but yet she continues to go after him and stalk him. After they start dating, he still treats her badly and thinks of her as stupid because he’s an angel, and she’s a mere human. Luce acts extremely stupid but, of course, gets good grades in school because she’s special and whatnot.