This song is quite difficult to figure out, no surprise it doesn't have a proper version for guitar yet. I'll 
give my version. It's close enough to the original. In brackets are displayed alternate chords to play, if you
find the basic version too dificult or it sounds better for you. Enjoy!
[Verse 1]
         Am9(Am7)                  Gadd4(Cmaj7)
When I waited for you there was no show
                Am9(Am7)                  D7
Made myself believe the untrue, how could I not know?
                Fmaj7(F)      Em7(Em)
I bet it seemed easier just to lie
      Am11(Am7)
But I found you out
     D7sus4         D7
This is my last goodbye
         Am         Am7sus4(Am7)     Gadd4
I heard enough fairytales back in my youth
              Am          Am7sus4            D7sus4  D7
So just stop biting your nails and take the painful truth
                Fmaj7
You just look ridiculous
       Em           Am11
In disguise, yes I found you out
      D7sus4        D7
This is my last goodbye
[Chorus]
          F              Dm7
Cause you used to be my life and soul
        Am             G
Keeping everything in tune     
          F
What the heck, man?
            Dm7
Last time I checked, man
Dm7          
We had it all 
Am                 G
It was just me and you
F                   Dm7
So what happened to you?
Dm7
Thought I knew you?
Am           G        D7
No more chances, I'm gone
Fmaj7  G
Gone, gone
[Verse 2]
Love is not blind
It's just deaf and it is dumb
So how could I fool myself thinking you were the one?
How sad, how undignified
Now I found you out
This is my last goodbye
[Chorus]
[Bridge]
               D7
Don't wait for me
         Dm   G
I'll be gone
When I waited for you there was no show
Made myself believe the untrue, how could I not know?
[Chorus]
       D7               F             Am9
Ohhhh (Well you did not wait for the last time)

About rhythm. I use a strumming pattern, fingerstyle sounds a bit too light for this kind of songs. Try to put
more emphasis on bass strings for second verse and chorus, it will add some bite to your sound.