intro:  C5 G5 C5 G5

G5 (from intro) C5
She looks so good movin' cross the dance floor
  G5
Better than the day she left me
        C5
Arm in arm with somebody new
                     G5
Holdin' hands and laughin' like we used to
          B5                          C5
I got my best smile on but it's no disguise
B5                 D5
It don't hide the pain in these eyes

CHORUS:
          G5            B5
I did her so wrong for so long
           C5                          G5    D5
Turned my back on her love now she's long gone
   G5              B5
I did my part to break her heart
            C5                      G5
She walked out on me and tore my world apart.
            A5       C5                       G5
She used to be mine, Oh she used to be mine.

Verse2

It's takin' every bit of strength that  I have

To keep a hurt look off my face

I can't keep from lookin' back over my shoulder

At the lucky man takin my place

Oh, if it weren't for my pride I'd probably take off runnin'

I guess what I'm feelin' is what I got comin'.

CHORUS 

(lead)

CHORUS                                        run 
        A5             C5                     C5   A5    G5
Oh she used to be mine, she used to be mine.