Assuming that one of the three people is the girl involved, maybe the third person is the man (doesn't have to be a specific person; it could be any man) who is missing out on this girl because the narrator has her. He is completely apathetic about being with her, and he knows she could do better. This is why he says that their love is a sort of punishment. I don't know; it's a thought.
Assuming that one of the three people is the girl involved, maybe the third person is the man (doesn't have to be a specific person; it could be any man) who is missing out on this girl because the narrator has her. He is completely apathetic about being with her, and he knows she could do better. This is why he says that their love is a sort of punishment. I don't know; it's a thought.