Written by Lukasz Gottwald, Claude Kelly, Max Martin
Intro / Verso
Intro: A D A C#m F#m D E
A
Guess this means you sorry
D A
You standing at my door
C#m F#m
Guess this means you take back
D E
What you said before
A
Like how much you wanted
D A
Anyone but me
C#m F#m
Said you never come back
D E (E7)
But here you are again
A F#m D E
Cuz we belong together now (yeah)
E7 A F#m C#m E
Forever united here somehow (yeah)
A F#m
You got a piece of me
Bm D
And honestly
A F#m D E
My life would suck without you 
A D A
Maybe I was stupid for telling you goodbye
C#m F#m D E
Maybe I was wrong for tryin to pick a fight
A
I know that I got issues
D A
But you pretty messed up too
C#m F#m D E (E7)
Anyway, I found out I nothing without you
A F#m D E
Cuz we belong together now (yeah)
E7 A F#m C#m E
Forever united here somehow (yeah)
A F#m
You got a piece of me
Bm D
And honestly
A F#m D E
My life would suck without you
riff
A D A
Being with you is so dysfunctional
C#m F#m D E A D A C#m F#m D E E7 (hold)
I really shouldn miss you, but I can let you go (ooh yeah)
A F#m D E
Cuz we belong together now (yeah)
E7 A F#m C#m E
Forever united here somehow (yeah)
A F#m
You got a piece of me
Bm D
And honestly
A F#m D E (A)
My life would suck without you
Full
key step up
Half
key step up
Half
key step down
Full
key step down
