Perfect Fit (слэш)

Harry hadn’t expected to fall in love with Draco immediately after the war, but it becomes clear pretty soon that he and Draco have different ideas of how to enjoy life without Voldemort. When he finds out Draco has been cheating on him, he’s devastated…but not as much as he would have expected. And why is he more worried about possibly losing Severus’s friendship than he is about losing his husband?