I'm almost positive that these are the right chords, the timing is a little tricky but 
it's easy once you get it

Verse: piano

She just walked away
Why didn't she tell me?
And where do I go tonight
This isn't happening to me
Tis can't be happening to me
She didn't say a word
Just walked away

Chorus: guitar

Em (022000@1)         BmYou (x24432@1)were the first to say
             CThat (x32010@1)we were not okay
Em (022000@1)         BmYou (x24432@1)were the first to lie
C (x32010@1)          DWhen (xx0232@1)we were not alright
Em (022000@1)        BmThis (x24432@1)was my first love
            CShe (x32010@1)was the first to go
D (xx0232@1)          EmAnd (022000@1)when she left me for you
C (x32010@1)       DI (xx0232@1)was the last to know

Verse: piano

Why didn't she tell me
Where to go tonight
She didn't say a word
She just walked away

Chorus: guitar

Em (022000@1)         BmYou (x24432@1)were the first to say
             CThat (x32010@1)we were not okay
Em (022000@1)         BmYou (x24432@1)were the first to lie
C (x32010@1)          DWhen (xx0232@1)we were not alright
Em (022000@1)        BmThis (x24432@1)was my first love
            CShe (x32010@1)was the first to go
D (xx0232@1)          EmAnd (022000@1)when she left me for you
C (x32010@1)       DI (xx0232@1)was the last to know

(bridge)  F, Am, F, Am

Chorus: guitar

D (xx0232@1)         EmI'll (022000@1)be the first to say
C (x32010@1)      DThat (xx0232@1)now I'm okay
            EmAnd (022000@1)for the first time
C (x32010@1)         DI've (xx0232@1)opened up my eyes
Em (022000@1)        BmThis (x24432@1)was my worst love
              CYou'll (x32010@1)be the first to go
D (xx0232@1)          EmAnd (022000@1)when she leaves you for dead
C (x32010@1)           DYou'll (xx0232@1)be the last to know
Em (022000@1)         BmI'll (x24432@1)be the first to say
         CThat (x32010@1)now I'm okay
D (xx0232@1)         EmAnd (022000@1)for the first time
C (x32010@1)         DI've (xx0232@1)opened up my eyes
Em (022000@1)        BmThis (x24432@1)was my worst love
              CYou'll (x32010@1)be the first to go
D (xx0232@1)          EmAnd (022000@1)when she leaves you for dead
C (x32010@1)           DYou'll (xx0232@1)be the last to know

(end on an E minor chord)