this song reminds of the kind of breakup where the relationship was bad from the start. He was never the right guy from the start and she knew that but just held on for whatever reason we hang on to bad relationship for. She acknowledges the good side of the relationship and that there was still some good fun in it. So why do we still feel bad when a bad relationship is finally over?
I think its about about aging and dying. Some elders feel ‘useless’ because they are no longer able to contribute either to the home or society. Say goodbye to the gracefulness and agility of youth, look up at the dark blue sky and pick out which star you’ll be in heaven.
I think that this is sort of a sad song. She seems to be singing to someone that she absolutely fallen head over heels for and still wait and yearns for him. They don't end up together but she still hopes because Christmastime is a season of perpetual hope.