The chord form is Cm , Eb , Bb , Dm , Cm , except for some parts where it ends with F instead of Cm
And the bridge has differents chords

Intro: Cm

Cm       Eb            Gm         Bb               Dm
If you're looking for love, get a heart made of steel 
                F
Cuz you know that love kills 
Cm          Eb      Gm            Bb            Dm
Don't go messing with love, it'll hurt you for real 
Cm
Don't you know that love kills?      X2
 
Cm             Eb                         Gm
Protect yourself cuz you'll wrack yourself 
           Bb             Dm             Cm
In this cold hard world, so check yourself 
Cm             Eb                             Gm                                                 
You can see your dreams and you shield yourself 
Bb                  Dm                   Cm    
'Til that one kind soul reveals itself   X2                                  

Interlude: Cm , Eb , Gm , Bb , Dm , F  (X2)

If you're looking for love, get a heart made of steel 
Cuz you know that love kills 
Don't go messing with love, it'll hurt you for real 
Don't you know that love kills?       (X2)

Bridge:

Ab                              Cm
Mmmh and I know when you're into deep 
             Bb         Cm 
Use to think of me sometimes 
Ab                       Cm
Stockholm syndrome in misery 
      Bb                         Cm
There's a penalty for love crimes 
(Oh yeah) 

Protect yourself cuz you'll wrack yourself 
In this cold hard world, so check yourself 
You can see your dreams and you shield yourself 
'Til that one kind soul reveals itself X2

( Cm durings this part)

Protect yourself 
(Protect yourself, protect yourself, ...) 
So check yourself 
(Check yourself, check yourself, ...) 

Bridge:

Mmmh and I know when you're into deep 
Use to think of me sometimes 

Stockholm syndrome in misery 
There's a penalty for love crimes 
(Oh yeah) 

Chorus

Protect yourself cuz you'll wrack yourself 
(If you're looking for love) 
In this cold hard world, cuz you know that love kills 
You can see your dreams and you shield yourself 
(Don't go messing with love) 
In this cold hard world, don't you know that love kills?  (x3)