Promise Me

I've lost all feeling in my chest again, I hoped this spirit would just drain away and leave me be.
Doctor, I need some surgery but really don't remember which side I don't need.
Cain was just like a brother, carry his love inside my head.
If it comes about, can I call on you to put me down again?
Brother, sister, how I'll miss you.
Pain was never the same to me, it's a promise that I never made.
I don't see it stopping itself.
I can't, cross your heart and then promise me.
Kill me.
Promise me.
I don't see it stopping itself.
I can't.
You need someone, somebody else, I can't.
Sister, brother, how I loved you.
Oh, say it's never.