Regret?

I'm standing here alone.
Wondering where you are.
Did you want to hurt me... worry me?
You pushed me away to early, but I take your regret, I take your blame and I put it on me.
You have the key to make the pieces fit, to make everything alright again.
You keep your distance, keep your secrets hidden away, I need to know.
I need to know why you pushed me away, and won't bother to take me back.