Every site that I have visited believes this to be a love song.
I honestly think that I am the only living human that views it differently.
I believe this song is about an old woman in a retirement home with Alzheimers, written from the view point of her own mind.
Just the title Retrograde alone started me on that impression.
It is the loss of memory access to events.
If you listen to it with that in mind then maybe I won't be alone.
Or maybe I'm just crazy.