I remember when you asked for those RealTracks (sparse, with few chords and some arpeggios, and I added my vote of course), and you do the same thing I do, you just play those piano parts yourself, and you do it REALLY well.
The piano track alone sells the song for me already.
The heartbreaking outro cry
Not only one of your best lyrics, but your vocals themselves are fantastic and dripping with emotion.
Amazing song!
Pitch this song to a well known artist (like John Legend or Adele) and it'll chart high and long!