The Used's song "Fuck You" expresses feelings of betrayal, anger, and being controlled by someone who broke a promise. The lyrics convey a sense of emptiness and loss of identity. The song seems to be about a toxic relationship where the narrator feels manipulated and owned by the other person. In the song, the narrator describes feeling betrayed and hurt by the broken promise of never changing. The repetitive phrase "Fuck you" serves as a direct expression of frustration and anger towards the person who caused these negative feelings. The lyrics suggest that the narrator has become a different person, a shell of their former self, due to the actions of the other person. The line "I'm a shell of the one I once knew" reflects a loss of self-identity and a feeling of being detached from their true self. Overall, "Fuck You" portrays the turmoil and emotional pain experienced in a toxic relationship where trust and promises are broken. The song captures the intense emotions of the narrators and their struggle to find a way out of this destructive situation.