Lyric discussion by StrayDogFreedom2 

i was told that the song was originally the way byebyebirdie58 said it, as a duet. to me, its about two people who loved one another but broke each others hearts somehow. the two speakers still loved one another but also knew they could no longer be together due to what happened so they tell each other (via the messenger) that the other person can come back to them if they do some impossible task which they know they will not be able to do, showing that they still love the other person but they'll never be together again. thats just the way i have come to see it

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