Lyric discussion by ThaliaSandy 

Cover art for Save You lyrics by Matthew Perryman Jones

This is a wondeful song! It reminds me of the movie 'The Butterfly Effect' and the way Evan goes back in time to save everyone from the horrible things that are going to happen in their lives.

'Was that really you I'm Looking back again I'm tracing back a friend You said it was a miss Was it just in my head'

^that part also perfectly describes the end scene or rather the alternate happy ending in which Evan and Kayleigh walk past each other, then turn around and she asks 'do I know you'?