Everyone have "the one that got away"?

I feel like every rper I've met has a story of a partner they previously had that they clicked with better than they ever could've imagined. And one day it just went up into a fiery ball of flames sending billowing stacks of smoke up into the air.

I certainly have my own story, which honestly that relationship spanned wayyy past roleplay, like we were best friends. Still not totally sure what happened but that's how life goes. Like I said, so many other rpers I've met have had similar stories of people that they went so well with and all of a sudden it came crashing down. I'm curious on everyone's else's stories! Did yours end in ghosting? Fight? Cordial parting? I find this topic interesting and want to hear more!