Meaning of "Pluto" by Naughty Boy

The lyrics of "Pluto" use planetary metaphors to represent different people who have hurt the narrator in the past, symbolizing different types of pain and betrayal. The repeated mention of leaving the heart on Pluto indicates a sense of emotional detachment and protection, as if the narrator has placed their heart in a faraway, unreachable place to shield it from further pain. The partner's attempts to convince the narrator that things are different this time are met with skepticism and a reluctance to fully engage emotionally. Despite the longing for change and hope for something better, there is an underlying sense of caution and self-preservation that pervades the song. Ultimately, the narrator seems resigned to the fact that they have been hurt before and may not fully trust the current relationship, as evidenced by the repeated refrain of leaving their heart on Pluto.