Okay this is my first ever tab (WOW) and so yer
The chord changes are pretty much perfect throughout the verses and the chorus but i am 
100% sure about the bridge
This is going from her single and her youtube version so its not the same as either of them
but......
it is a good way to merge them
and sounds really good to play and SUPER EASY to sing it this way
so have fun with it!!! :)
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CAPO - 4th fret


(one strum each chord change for this verse)

      G        Cadd9
Every shred of hope
Em7              D/F#
collides in your heart
         G       Cadd9              Em7        D/F#
with the fear of losing what you've just given up
       G       Cadd9    Em7     D/F#
As the moments pass you pray to survive
          G      Cadd9             Em7  D/F#  G
All these lonely minutes that once kept you   alive

(start strumming)
Cadd9, Em7, D/F#, G, Cadd9, Em7, D/F#

       G            Cadd9             Em7           D/F#
Try to change the expression that's worn out your face
       G          Cadd9            Em7         D/F#
As you lose the momentum of your past living ways
      G         Cadd9           Em7         D/F#
Every song is a channel for the memories to keep
         G       Cadd9          Em7  D/F#
Floating in your head as you're left asking

Em7        C         G          D/F#
 Why did I choose to let it all go
           Em7     C
was it the fear of needing
       G            D/F#
or the doubts I let show
        Em7     C
I never gave up fighting
        G        D/F#
I never said goodbye
   Em7  C  G       D/F#    G
So wh...y? Why did we let  go?

Cadd9, Em7, D/F#, G, Cadd9, Em7, D/F#

      G        Cadd9               Em7            D/F#
Every day is a new breath, but the battle's still on
       G       Cadd9         Em7             D/F#
Trying hard to elude them by keeping my head strong
        G        Cadd9         Em7          D/F#
Still I feel the exhaustion of wanting your kiss
       G         Cadd9      Em7       D/F#
As I'm left here asking the same dumb question


Em7        C         G          D/F#
 Why did I choose to let it all go
           Em7     C
was it the fear of needing
       G            D/F#
or the doubts I let show
        Em7     C
I never gave up fighting
        G        D/F#
I never said goodbye
   Em7  C  G       D/F#
So wh...y? Why did we let go?

          Cadd9                G                D/F#
You never showed that you were scared of losing me
               Cadd9            G            D/F#
And you didn't fight to make me stay in your arms.
D/F# (staccato)
So I'm left asking.....

Em7        C         G          D/F#
 Why did I choose to let it all go
           Em7     C
was it the fear of needing
       G            D/F#
or the doubts I let show
        Em7     C
I never gave up fighting
        G        D/F#
I never said goodbye
   Em7  C  G       D/F#    G
So wh...y? Why did we let  go?

Cadd9, Em7, D/F#

    G, Cadd9, Em7, D/F#
Let go

G, Cadd9, Em7, D/F#

G          D/F#
Why did we let go?

(One strum each chord change)
        Em7     C
I never gave up fighting
        G        D/F#
I never said goodbye
   Em7  C  G       D/F#    G
So wh...y? Why did we let  go?