Death Cab for Cutie - Diamond and a Tether
This sounds right to me, listen to the song to get the right rhythm.  I left out 
the two extended portions of the song for simplicity's sake.

Verse:
G          C      G
Pity, take pity on me.
        C       Am               C        G
'Cause I'm not half the man that I should be.
C      G      C    G
Always turning to run,
C        Am              C        G         C G
from the people I should not be afraid of.

C    G        C        G
And darling, you should know
     C      Am          C         G
that I have fantasies about being alone.
          C         G
It's like love is a lesson,
     C      G
that I can't learn.
  C        Am               C             G
I make the same mistakes at each familiar turn.


Chorus:
                 Em           C          G
I know you can't hold out forever
             Em               C         G   D
waiting on a diamond and a tether
       Em            C
from a boy who won't swim
             B7          Em
but who will dip his toe in
         A7      C         G       C G
just to keep you here with him.

Verse:
     C        G     C   G
I've got this habit I abhor.
     C     Am             C             G
When we go out I'm always watching the door.
   C          G           C     G
As if there's someone I'm gonna see
    C        Am                 C         G
who could outdo the things that you do to me.

Chorus:
                     Em          C        G
And I know you can't hold out forever
             Em            C           G  D
waiting on a diamond and a tether
       Em            C
from a boy who won't fly
             B7          Em
but who will take to the skies 
      A7              C               G     C G C
if he thinks you are about to say goodbye.

Verse:
G          C       G
Pity, take pity on me.
       C       Am                C        G
'cause I'm not half the man that I should be.
    C        G
And I don't blame you,
       C      G
you've had enough,
   C         Am          C                  G
of all these empty promises and countless bluffs.

Chorus:
                        Em          C         G
'cause I know you can't hold out forever
             Em              C         G   D
waiting on a diamond and a tether
       Em             C            B7      Em
from a boy who won't jump when he falls in love.
         A7             C            Em
He just stands with his toes on the edge
        A7             C            G
and he waits for it do disappear again.