From the artist:
I lost a good friend to suicide. Before she died, I rejected a call on my mobile. It was from a withheld number. I didn't know who it was, so I didn't answer it. What I will never know is; was that her? Did she want to talk? Did she call me? Did I reject her? Could I have helped her? I will never know. I can't help thinking; it should've been me.