In Pursuit of Lost Marbles (слэш)

Every night after work, Healer Malfoy follows the same routine, beginning with a familiar flight of stairs that leads to the Janus Thickey Ward at St. Mungo's. With an air of professionalism, he introduces himself to Harry, his husband of seven years, when a memory curse makes Harry look at him like a stranger. He tries not to flinch when Harry calls him sir, but he smiles when bits of the old Harry emerge. Eventually, Draco leads Harry to the Pensieve where he shows him pieces of the life they've built together, what Harry will come home to, one day, when this is all over.
Then, Draco waits. He waits, and he hopes.