Counting hearts (payback)

Any normal person
Would hate to do what I've done
I've broken your heart
And yet I've only just begun

This is what I do
All hail the heart breaker
I live my life in the fast lane
Call me a risk taker

After a life of heartbreak
And many a broken pledge
I've been pushed to my limit
I'm living on the edge

Payback is so sweet
All is fare in love and war
You think I took your heart
I'm still counting more