Hey - so if you watch any live version of this song - you will see that they are 
just playing 1st position chords and have their guitars tuned down A WHOLE STEP (DACFAD) - NO capo


Live versions here:
https://www.youtube.com/watch?v=dgwGYEQs874
https://www.youtube.com/watch?v=1qTYLPLmKOE


Am            C
   And hey darling
  G/B               Am7
I hope you're good tonight
      C                   G/B
And I know you don't feel right when I'm leaving
Am7
Yeah I want it but no I don't need it
C                 G/B            Am
Tell me something sweet to get me by
     C                 G/B
'Cuz I can't come back home till they're singing


(Palm mute the lowest 3 strings of the chord)
Fadd9     G/B     Am
La, la la la,la la la
'Til everyone is singing

C                      G/B
  If you can wait till I get home
       Am
Then I swear to you
     Fadd9
That we can make this last
(La la la)
C                      G/B
  If you can wait till I get home
       Am
Then I swear come tomorrow
                        Fadd9
This will all be in the past
        G
Well it might be for the best


Am                C
   And hey sweetie
       G/B            Am7
Well I need you here tonight
      C                   G/B
And I know that you don't want to be leaving me
Am7
Yeah you want it but I can't help it
C              G/B                    Am7
I just feel complete when you're by my side
      C                   G/B
But I know you can't come home 'til they're singing


(Palm mute)
Fadd9     G/B     Am7
La, la la la,la la la
'Til everyone is singing
Fadd9     G/B     C
La, la la la,la la la


C                      G/B
  If you can wait till I get home
       Am
Then I swear to you
     Fadd9
That we can make this last
(La la la)
C                      G/B
  If you can wait till I get home
       Am
Then I swear come tomorrow
                        Fadd9
This will all be in the past
        G                Fadd9
Well it might be for the best

                   Fadd9          C
You know you can't give me what I need
         C                  Am7
And even though you mean so much to me
        Am7              G/B
I can't wait through everything
        G/B
Is this really happening

(palm mute this part)
Fadd9                              C
      I swear I'll never be happy again
                              Am7
And don't you dare say we can just be friends
                              G/B
I'm not just some boy you can sway
             G/B
We knew it'd happen eventually

Fadd9     G/B     Am
La, la la la,la la la
    C
Now everybody's singing
Fadd9     G/B     Am
La, la la la,la la la