How to break a heart

I think you were expecting a love song, something sweet
telling everyone how much you meant to me
I guess i just don't really recall
so don't worry I'm sure theres plenty of other guys
who will fall for your fake smile and buy up all your lies

You just made the biggest mistake of your life
and I'm thinking that you finally understand

But you took this long ago so who's heartless now?
This is me letting you know that you've been replaced
This is me letting you know that I'm letting you go
I cant miss you until you leave so go on now
Just let me get used to you walking away
cause this is me letting you know that I'm letting you go

Mow the best part is your contact
while weathered "buts" still intact
its impersonal and I'm still strangely comfortable with that.
You can go right ahead, its failure in a phrase
I'm starting to think you will never understand

I'll write your name in a song
and I'll call you out on everything
that you've ever done wrong.
The world will sing along so let me clear the air.
You're gone and I'm still here.