I had a curious encounter with an ex fiancée , thirty years after we split. We had been together for two years as students . I had mourned her terribly. We had finished up at different unis. I assumed it was the distance.
No, it was the guy who brought her to Oxford to see me.
I never knew, and they married within a year, still are I think.
So, with that I say, once the ship has sailed, move on and never look back.