The Break Up Song

What is the best break-up song? Hmm.. I think it differs for everyone.

Currently, I'm listening to The Red Jumpsuit Apparatus - Your Guardian Angel.
I think this song is so sweet. It reminds me of a beautiful ONE YEAR that I had with my ex. But I guess, even angels, grow apart...

I owe him a lot... For a start, a sincere APOLOGY.
But I also owe it to myself. Time to cleanse my weakening soul.