Wrapped Around Your Finger (Luke Hemmings/5SOS fanfic/songfic)

I thought the song was incredible and had some serious fanfic moments, so here ya go:-)

Luke Hemmings is a teenage boy. Touring the world with his best friends in a pop punk band, heaps of girls at his feet, he had it all right?
Well that's where you're wrong. He had his past, he was over it. Just not a certain part of it. His childhood best friend had left to go to LA; but what happens when Luke finally finds her again?