Perfect

The lyrics describe two people who once loved each other but now recognize that their relationship has changed. The speaker accepts that they may be better as friends, while still feeling that something important has been lost. The mood moves between sadness and reassurance: the relationship may be ending, but the speaker tries to imagine a future in which they can meet again peacefully.

“Perfect strangers” suggests that former lovers might eventually pass one another as if they barely know each other. The contrast with “lovers while we sleep” hints that closeness may survive in dreams or memories, even when it has disappeared from everyday life. “The letters have been sent on” can imply that important words have already been communicated, or that events have moved beyond the point of taking them back.

The repeated promise that they will be “perfect” sounds hopeful, but it may also carry doubt. They may mean that, with time, they can become friends or remember the relationship kindly; the word could also express an impossible wish to undo mistakes and make everything right. The lyrics leave unclear whether this promise will come true, making the ending feel both comforting and wistful.