i think this a 100% correct if I'm not I'm sorry this is just my way of playing 
it, but i hope it can help anybody who's trying to learn this song

Standard tunning


DA,DA x18

 intro: A string strum on 3rd fret then D String 3rd fret then 2nd fret real fast 
(Listen for rhythm)x2


   

Verse 1:
C (x32010@1)                                  GI (320003@1)don't know if i can yell any louder how many times have i kicked you out of 
Am (x02210@1)                      F (133211@1)         Chere? (x32010@1)or said something insulting.
                                  G (320003@1)                             Am (x02210@1)     
i can be so mean when i want to be i am capable of really anything i can cut 
          F(Hold)
you into pieces but my heart is broken.

Chorus:
C (x32010@1)  G (320003@1)       Am (x02210@1)   F (133211@1)               C (x32010@1)  G (320003@1)      Am (x02210@1) 
Please don't leave me,Da,Da,Da,Da,Da,Da please don't leave me 
F (133211@1)                  C (x32010@1)           GDa,Da,Da,Da,Da.Da (320003@1)i always say how i don't need 
            Am (x02210@1)          F (133211@1)                    C (x32010@1)  G (320003@1)           Am (x02210@1)    Fyou (133211@1)but its always gonna come right back to this please don't leave me.

Verse 2:
C (x32010@1)                           G (320003@1)                                       Am (x02210@1)   
how did i become so obnoxious? what is with you that makes me act like this 
                        F (133211@1)          Ci've (x32010@1)never been this nasty.
                                             Gcant (320003@1)you tell that this is all just a contest the one that wins will be the 
                         Am (x02210@1)                    F(hold)
one that hits the hardest but baby i dont mean it i mean it i promise

Chorus: x1  


Bridge:
G (320003@1)                          D (xx0232@1)                         Gi (320003@1)forgot to say aloud how beautiful you really are to me i cant be without 
         D (xx0232@1)                                F(hold)     (One strum) C (x32010@1)            
your my perfect little punching bag and i need you i'm sorry.
(1 strum fro all)G,Am,F
Da,da,da,da,da,da,da,da,da,da,Da,Da,Da

(palm mute)
C (x32010@1)  G (320003@1)    Am (x02210@1)    F (133211@1) (Chorus with open chords)
Please don't leave me