I think it's about the sometimes blurry lines between prostution and relationships which when broken can end up feeling emtpy and transactional than originally felt in the honeymoon period. Perhaps the protagonist was robbed by a prostitute, but I think the keys represent the keys to the heart, and she apparently made a copy although really it looks like he left the door wide open. the twelve keys represent musical notes in my opinion represent the full harmonic potential of genuine romance
I think it's about the sometimes blurry lines between prostution and relationships which when broken can end up feeling emtpy and transactional than originally felt in the honeymoon period. Perhaps the protagonist was robbed by a prostitute, but I think the keys represent the keys to the heart, and she apparently made a copy although really it looks like he left the door wide open. the twelve keys represent musical notes in my opinion represent the full harmonic potential of genuine romance