A broken heart

I think I'll always have a broken heart, but who can tell?
I know that as long as I'm near you,
I'll never be quite well.
I think my heart was cracking and I smiled all the while,
but now it's completely cracked;
the pieces in a pile.
I did this to myself, that much I know.
I don't know why I stayed and let my feelings grow.
I'm so in love, but it's all so lost,
I gave you up,
and this is the cost.