Your heart can only break as much as you were happy before, so instead of thinking "it hurts so much" think "at least it got to be that good once upon a time"
The pieces always get smaller and smaller and smaller.....wich means it can break over and over again....if you let it.
But I'm not saying you should close your heart to everybody esle and become that mean person.....you just have to choose better next time.....and IF you fail again, remember, what doesn't kill you only makes you stronger.
I think that you can actually repeatedly break a heart, even if it is already broken, they can break it down until there is nothing left, and even then they will always find something else to break.