Okey, here we go... The easiest way to play this song is to play it with a capo on the 6th fret, 
but I think it sounds better if you play it without the capo. 
So here's the chords that you play without the capo.

Eb              Bb           Ab                             Eb, Bb, Ab
You look so defeated lying there in your new twin size bed
Eb              Bb           Ab                            Eb, Bb, Ab
With a single pillow underneath your single head
Eb              Bb                    Ab                                          Eb, Bb, Ab
   I guess you decided that that old queen was more space than you would need
Eb              Bb                  Ab                                        Eb, Bb, Ab
Now it's in the alley behind your apartment with a sign that says it's free
        Fm                Ab                    Eb, Bb, Ab
And I hope you have more luck with this than me

---------
Eb                    Ab          Eb/C           Bb
And I try not to worry, but you've got me terrified
Eb                               Ab
It's like your in some kind of hurry
        Fm        Ab                  Eb, Bb, Ab
To say goodbye, say goodbye, say goodbye



It's the same pattern through the rest of the song. Have fun!