Seeking a Friend for the End of the World

The world is set to end in two weeks. Remus Lupin doesn't particularly care for it until a black-haired idiot stumbles into his life. He didn't sign up for a road trip to Scotland, but that's what he gets. or How Remus goes from cold and uncaring to head over heels for a weird stranger. (Seeking a Friend for the End of the World AU, the plot doesn't follow the movie closely)