In the quote from "Lola and the Boy Next Door" by Stephanie Perkins, the narrator expresses that if she is like a star, then Cricket Bell is a whole galaxy, highlighting his significance and the vastness of her admiration for him. This metaphor conveys how much she thinks of him, emphasizing his importance in her life and her feelings towards him.
The comparison suggests that Cricket Bell stands out as something truly remarkable, much grander than herself, and evokes a sense of awe and admiration. It reflects the deep emotional connection and admiration the narrator has for Cricket, portraying him as an extraordinary presence in her world.