This is how i like to play it.
For the opening verse: Hit the open E (with upward strokes and damping) and slide 
to barred G on 'fee-' and back to E on '-ling'. And open D.



verse 1:

E         G->E     E         G->E      
I've been feeling, I've been feeling
           D                        E
I've been feeling like you mess me round
E         G->E     E         G->E
I've been hurting, I've been hurting, 
          D                          E
I've been hurting but there's no way out
          D                          E
I've been hurting but there's no way out


verse 2: same as verse 1
                            
I've been reeling, I've been reeling                                   
I've been a reeling since the day you left                          
Now I'm wondering, I'm wondering yeah                                      
I said I'm wondering how you've no regrets
I’m wondering how you’ve no regrets
I said I’m wondering how you’ve no regret


chorus:

Am        D              D-Dsus4-D-Dsus2   Bm
You got a heart of stone 
          Em          Am7     Am    
You got a heart that feels so cold
              D        D-Dsus4-D-Dsus2        
But I'm not letting go
Bm                   A
I'm just letting you know
                         B
That you got a heart of stone-yeah

verse 3:
                             
I've been thinking, I've been thinking                         
I've been thinking since you put me down                 
I'd be better, I'd be better yeah
I'd be so much better off without
I'd be better better off without
I'd be better better off without

oooo yeah

chorus:

You got a heart of stone 
You got a heart that feels so cold
But I'm not letting go
I'm just letting you know
You got a heart of stone  yeah

(instrumental)

chorus:

You got a heart of stone 
You got a heart that feels so cold
But I'm not letting go
I'm just a letting you know
You got a heart of stone 
You got a heart that feels so cold


I'm not letting go  I'm not letting go no no no no
I'm not letting go  I'm not letting go no no no no
I'm not letting go  I'm not letting go no no no no