Ok. First, I liked the story. Also good to see more sci fi out there doing things, especially with many podcasts and mags going dark.
The story had it's issues. I also think they threw in too many science terms for the sake of throwing it in. But I can overlook it. I see what they were trying to do.
It's an interesting relationship, and it's good to see that carried out over the ages, to see where it could go.
As others pointed out, Voices of a Distant Star goes in a similar direction; but a fundimentally different one.
Spoilers for below.
The relationship in VoaD prett much destroys both of them. Her because of how she acts, and how it leaves her atthe end; just wanting.
And him how he wants to move on, but can't; as he knows for a fact that the girl he loves is still out there, as she was when they were in love. He can't move on, because she can't.
end of spoilers
While this story is about them not needing the idea of each other, but just ending up together, over and over. Each time taking them to a different place they don't understand, that becomes home for them. Everytime they meet the change each other in ways they don't understand.
Or at least she changes. He doesn't get that much development as a character in that respect. He did maybe 3 things to move along, and one of them was make an emergancy plan.