In Nick Hornby's novel "High Fidelity," the protagonist struggles with feelings of inadequacy and disconnection from himself and the world around him. He reflects on his relationships and emotional state, expressing a deep uncertainty about his place in the lives of others. This internal conflict reveals his vulnerability and highlights a common human experience of feeling insignificant or unworthy of love and attention.

The quote encapsulates his existential dilemma, illustrating a broader theme of the book: the complexities of love and self-identity. As he grapples with his personal troubles, he questions how he can expect to be vital in someone else's life if he feels lost and unimportant in his own. This sense of alienation resonates with readers, emphasizing the struggle to find one's value and connection in a seemingly indifferent world.