Breakeven

I've been hearing this song on the radio a lot. It is, like many others, about a romantic breakup. But parts of it really speak to me, so I'm pasting them here. The song is Breakeven, by Script.

They say bad things happen for a reason
But no wise words gonna stop the bleeding
Cos she's moved on while I'm still grieving
And when a heart breaks no it don't breakeven even... no

What am I gonna to do when the best part of me was always you,
And what am I supposed to say when I'm all choked up that you're ok
I'm falling to pieces, yeah,
I'm falling to pieces, yeah,
I'm falling to pieces
(One still in love while the other ones leaving)
I'm falling to pieces
(Cos when a heart breaks no it don't breakeven)