we were built to fall apart (then fall back together)

"The rest of the world was black and white, but we were in screaming color." Teddy Lupin is fresh out of university and has his whole life planned out. A chance encounter in the London Overground may just rearrange his whole life, though. A three-part modern fairytale about paper airplanes, trains, and missed connections. Muggle!AU. Taylor Swift song. For Eclipses Riddle.