out of all the depressing as fuck madoka x homura doujins I've read over the last week this one still sticks with me the most. It must be because of the mixing of intense high and low emotions (e.g., the sudden romantic scene with madoka and then the crushing fall), it makes it feel like a sort of fever dream you'd have as you recall all the good and vile things that ever happened to you all at the same time and in a half-conscious state
also the fanfic mentioned by the author at the end is likewise soul-crushingly depressing, it's well-worth a read