Don't look back in anger

I'm still alive but I'm barely breathing,
Just prayed to a god that I don't believe in,
'Coz I got time while she got freedom,
'Coz when a heart breaks no it don't break even.

Her best days will be some of my worst,
She finally met a man that's gonna put her first,
While I'm wide awake, she's no trouble sleeping,
'Coz when a heart breaks no it don't break even, even no.

What am I supposed to do when the best part of me was always you
What am I supposed to say when I'm all choked up and you're ok
I'm falling to pieces