Wrath I Am Pain, Hear Me Roar!

Harry's boyfriend cheats on him, his magic and temper go kablooie, mood clouds abound throughout the Ministry, the Magical Maintenance staff are morons, Harry has a secret file, and ends up trapped in a lift with Malfoy for hours. What could possibly go wrong? — EWE, HP/DM, H/D, Drarry, Auror Harry, Unspeakable Draco, Bashing, Obsession, Infidelity (not Drarry), Angry Sex