Half of my heart

Unless this first time is also the last time
There will be a next time and maybe we can try again
You threw me a lifeline, you were kind enough
To open up what was shut, but then I shut it again
We got off on a bad start
You don't know the half of my heart
It pours like rain
You don't know the half of my pain
When I was young, I grew up a little too fast
I was wearing a child's mask but I saw the worst of it
Then here you come like stardust fallin' from the sky
Excuse me if I shield my eyes, I don't want to get hurt from it
We got off on a bad start
You don't know the half of my heart
It pours like rain
You don't know the half of my pain
Oh it's a shame I know
My mind says stop when my heart says go
We got off on a bad start
You don't know the half of my heart
It pours like rain
You don't know the half of my pain