This isn't perfect, but it sounds alright to me, and it's how I play it...
Capo II
Intro
E:---------------------------|--------------------------
B:---------------------------|--------------------------
G:---------------------------|--------------------------
D:-------3/5--3--2-----0-----|-------3/5--3--2-----2---- Repeat
A:-0--3-------------3-----2--|-0--3---------------------
E:---------------------------|--------------------------

Verse
     Am     C     G     F    Am     C     G    Em
E:----0-----0-----3-----1-----0-----0-----3-----0------
B:----1-----1-----0-----1-----1-----1-----0-----0------
G:----2-----0-----0-----2-----2-----0-----0-----0------
D:----2-----2-----0--3--3-----2-----2--0--0-----2------
A:-0--0--3--3-----2--------0--0--3--3-----2--2--2------
E:-------------3--3-----------------------3-----0------

     Am     C     G     F    Am 
E:----0-----0-----3-----1-----0-
B:----1-----1-----0-----1-----1-
G:----2-----0-----0-----2-----2-
D:----2-----2-----0--3--3-----2-
A:-0--0--3--3-----2--------0--0-
E:-------------3--3-------------

Chorus
F        Am  
 Stay or leave
  C               G
I want you not to go but you 
F             Am      C    G
Should It was good as good goes 
F       Am
Stay or leave
  C               G
I want you not to go but you
(start back into the chords of the verse)
Did

(not sure of chords here)
So what to do
With the rest of today's afternoon, hey
Isn't it strange how we change
Everything we did
Did I do all that i should
That I could'a done

(I'm not quite sure if this part is right, but it sounds ok)
F                         G
Remember we used to dance
                          C
And everyone wanted to be
                        F
You and me I want to be too
                 C
What day is this
            G               F?
Besides the day you left me?

After this is mostly repetition of the other parts...you can probably take it from here though...thanks!
- Brittany O'Halloran