There is a really simple piano line during the verses that goes like this (it's 
not hard to figure out the rhythm )
e | ----------------------------------- | 
B | ----------------------------------- | 
G | ----------------------------------- | 
D | --1----1----1----1----------------- | 
A | -3----2----1----0----6------------- | 
E | --------------------4----3---3----- | 
(So, it's basically C5 , C5 , C5 , C5 , C5 , G.)

Chorus:
                    Eb5   G5
And I don't want to be alone
C5                       Ab5
Sky, don't let the sun go
        Eb5        
I'm not ready for the darkness
G5                      C5
Swear upon a heartless soul

                    Eb5           G5
And I don't want to cry when you go
C5                        Ab5
Stay a little longer, you know
                  Eb5   G5 G5
You're making me feeel
I'm not alone

Bridge:
              Ab5            
And if I only worry 'bout it
Worry 'bout it, worry 'bout it
            Eb5
I just keep breaking down
Breaking down, breaking down

             Ab5
Boy, I could do without
Do without, do without
               G5           G5
A night of the bad dreams, sad things
G5                   G5
  Tell me what that means 


That's it, have fun! :D