Why did it have to be you?

Harry and Draco hate each other. They don't want anything to do with each other. But Draco's feelings start to change but he knows Harry would always hate him. Suddenly, they are partnered up in Potions. Enemies turn to friends, but will love blossom in the end? Or will Draco Malfoy remain alone? Half-Blood Prince. Includes Bathroom scene. SLASH in later chapters.