I'm having a severe case of amnesia in finding a story long since read and name forgotten. I do however remember one very specific scene. Harry had taken Fleur to the ball, who concludes he is Homosexual. Rita is present in her Animagus form and subsequently reveals this fact, Harry then going to inquire to Fleur if she was the reason.

I've honestly drawn a blank on everything else.

 

Here you go, mate: https://www.fanfiction.net/s/6163339/1/Harry-Potter-and-the-Descent-into-Darkness

 

Thank you very much.