This is just my version, i think i think its pretty close though 

Capo 2

          G                  D
There are walls here in this house
             G
that werent in the plans
    G                 D
the kind you build in silence
    G
not by hand
C
if u wont help me tear em down
D
im not gonna stay around
C                              D
you cant say i left you in the dark
C
are you just gonna let me leave
D
or stand between the door and me
C                G     (pause)
before i go that far

Chorus
G
before i reach the place
           D
that no matter what you do or say
C                                      G
there's no way that you could touch my heart
G
before i finally had enough
           D
imagine me endin up 
C            G
in anothers arms
         C                      D(single strum)                              
if that breaks your heart. . . stop me 
                  G
before i go that far
G                         D 
well that first step will be
            G
the hardest one to take
G                  D
goodbye is not a choice
        G
i wanna make
C
but baby somethings gotta give
D
all i know is i cant live 
C                                     D
in this house with you the way things are
C
im about to cross that line
D
heres your chance to change my mind
C                G   (pause)
before i go that far
G                       
before i reach the place 
          D
where no matter what you do or say
C                                     G
theres no way that you could touch my heart
G
before i finally had enough 
           D
imagine me endin up
C            G
in anothers arms
         C                      D   (full strum)
if that breaks your heart. . . stop me 
                 G     (no pause)
before i go that far
G               
before i finally had enough
      D
just imagine me makin love 
C            G
in anothers arms
         C                      D  (single strum)
if that breaks your heart . . . stop me
                         G
stop me before i go that far