Worst ending (Patreon)

Hey! About a year ago, I asked you guys what your favourite story of mine was. This time, I was wondering something else. You probably noticed that my stories usually have bad endings, with lives being ruined, identities being erased, etc. 

So I was wondering, what do you think is the most fucked-up ending I made so far? The one that made you think "holy shit, that was dark/fucked up". If you have more than one story that comes to mind, that's fine too :)