Strumming Patterns (I don't know if this the actual pattern but this is what I play and 
it sounds fine to me):

Verses & Chorus: DDU UDU x2
Bridge:
       G - DDU UDU x2
       Am - DDU UDU
       F - DDU UDU


Capo 4

Verse 1:
C
Summer after high school when we first met
Em
We make out in your mustang to Radiohead
Am                                      F
And on my 18th birthday we got matching tattoos
        C
Used to steal your parent's liquor and climb to the roof
Em
Talk about our future like we had a clue
Am                                       F
Never planned that one day I'd be losing you


Chorus:
            C                   Em
In another life I would be your girl
                Am                         F
We keep all our promises be us against the world
            C                    Em
In another life I would make you stay
                   Am                            F
So I don't have to say you were the one that got away
F
The one that got away.


Verse 2:
C
I was June and you were my Johnny Cash
      Em
Never one without the other we made a pact
Am                          F
Sometimes when I miss you I put those records on... woe
C
Someone said you had your tattoo removed
Em
Saw you downtown singing the blues
Am                                             F
It's time to face the music I'm no longer your muse


Chorus:
               C                   Em
But in another life I would be your girl
                Am                         F
We keep all our promises be us against the world
            C                    Em
In another life I would make you stay
                   Am                            F
So I don't have to say you were the one that got away
F
The one that got away.

The one the one the one

The one that got away.


Bridge:
G                            Am            F
All his money can't buy me a time machine. No.
G                        Am             F
Can't replace you with a million rings. No.
Em                          Am           F
I shoulda told you what you meant to me. Woe.
G
Cause now I pay the price.


Chorus:
           C                    Em
In another life I would be your girl
                Am                         F
We keep all our promises be us against the world
            C                    Em
In another life I would make you stay
                   Am                            F
So I don't have to say you were the one that got away
F
The one that got away.

The one the one the one

The one that got away.

            C                    Em
In another life I would make you stay
                   Am                            F
So I don't have to say you were the one that got away
F (One Strum)
The one that got away.