Note: This is the actual key that the song is in, so you don't need a capo. For an 
easier version, transpose 1 half step up or until the chords are simpler. :) 
No Capo

F#

F#
Once upon a time
a few mistakes ago
C#
I was in your sights
you got me alone
 Ebm
You found me
You found me
B
You found me-e-e-e-e

  F#
I guess you didn't care
and I guess I liked that
    C#
and when I fell hard
you took a step back
Ebm
without me
without me
B
without me-e-e-e-e

F#
   And he's long gone
C#
  When he's next to me
Ebm
   And I realise
B
 The blame is on me

      Ebm                 B                C#
Cause I knew you were trouble when you walked in
      F#    C#
So shame on me now
Ebm            B               C#    
Flew me to places i'd never been
         F#       C#
Till you put me down

   Ebm                 B                C#
oh I knew you were trouble when you walked in
      F#    C#
So shame on me now
Ebm            B               C#    
  Flew me to places i'd never been
         F#            C#
Till i'm lyin on the cold hard ground

Ebm     B      C#            F#
  Oh     Oh     Trouble trouble trouble
Ebm     B      C#           F#
  Oh     Oh     Trouble trouble trouble

F#
No apologies
he'll never see you cry
 C#
pretends he doesn't know
that he's the reason why
      Ebm
You're drowning
You're drowning
      B
You're drowni-i-i-i-ing

   F#
I heard you moved on
from whispers on the street
   C#
a new notch in your belt
is all I'll ever be
Ebm
And now I see
now I see
B
now I see-e-e-e-e

F#
  he was long gone
C#
  When he met me
Ebm
   And I realise
B
 The joke is on me

    Ebm                 B                C#
 I knew you were trouble when you walked in
      F#    C#
So shame on me now
Ebm            B               C#    
Flew me to places I'd never been
         F#       C#
Till you put me down

Ebm                 B                C#
  oh I knew you were trouble when you walked in
      F#    C#
So shame on me now
Ebm            B               C#    
Flew me to places i'd never been
         F#            C#
Now i'm lyin on the cold hard ground

Ebm     B      C#  
  Oh     Oh     Trouble trouble trouble
Ebm     B      C#  
  Oh     Oh     Trouble trouble trouble

         F#
when the saddest fear
     C#
comes creeping in
Ebm
That you never loved me or her
   B
Or anyone or anything   yeah

    Ebm                 B                C#
 I knew you were trouble when you walked in
      F#    C#
So shame on me now
Ebm            B               C#    
Flew me to places i'd never been
         F#       C#
Till you put me down

Ebm                 B                C#
  I knew you were trouble when you walked in
      F#    C#
So shame on me now
Ebm            B               C#    
Flew me to places i'd never been
         F#            C#
Now i'm lyin on the cold hard ground

Ebm     B      C#  
   Oh     Oh     Trouble trouble trouble
Ebm     B      C#  
   Oh     Oh     Trouble trouble trouble

 Ebm                 B                C#
I knew you were trouble when you walked in
           F#        C#
   trouble trouble trouble
   Ebm                 B                C#
I knew you were trouble when you walked in
F#                   C#
   trouble trouble trouble


[Enjoy! this is one of my first tabs so don't forget to rate and comment :)
By Tamara]