The chord form is C5 , Eb5 , Bb5 , D5 , C5 , except for some parts where it ends with F5 instead of C5
And the bridge has differents chords

Intro: C5

C5       Eb5            G5         Bb5               D5
If you're looking for love, get a heart made of steel 
                F5
Cuz you know that love kills 
C5          Eb5      G5            Bb5            D5
Don't go messing with love, it'll hurt you for real 
C5
Don't you know that love kills?      X2
 
C5             Eb5                         G5
Protect yourself cuz you'll wrack yourself 
           Bb5             D5             C5
In this cold hard world, so check yourself 
C5             Eb5                             G5                                                 
You can see your dreams and you shield yourself 
Bb5                  D5                   C5    
'Til that one kind soul reveals itself   X2                                  

Interlude: C5 , Eb5 , G5 , Bb5 , D5 , F5  (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:

Ab5                              C5
Mmmh and I know when you're into deep 
             Bb5         C5 
Use to think of me sometimes 
Ab5                       C5
Stockholm syndrome in misery 
      Bb5                         C5
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

( C5 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)