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 Cm/C, Cm/B, Cm/Bb, Cm/A, Cm/Ab, G.)

Chorus:
                    Eb   G
And I don't want to be alone
Cm                       Ab
Sky, don't let the sun go
        Eb        
I'm not ready for the darkness
G                      Cm
Swear upon a heartless soul

                    Eb           G
And I don't want to cry when you go
Cm                        Ab
Stay a little longer, you know
                  Eb   G G
You're making me feeel
I'm not alone

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

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


That's it, have fun! :D