ok guys i think this is 98% accurate, i listened to the song and this is what i think

Intro- E C#m A E

E                                  C#m
You want a girl who does what's right 
A                            E
The kind who is always there beside you 
E                          C#m
Someone who is quiet and polite 
A                          E
Like staying home on every friday night 
A                   B
Well that sounds so cute and sweet 
A                     D
But that doesn't do a thing for me 
CHORUS:
E                   C#m
I'm really not that boring 

I'm headstrong 
        A
And annoying 
                  D       A
So I don't see me fitting in your world 
E                 C#m
I'm noisy and I'm messy 
                     A
Plus you would never get me 
                          D
hey I think you're really hot 
A
But I'm Not Your Girl  

REPEAT FROM TOP
So you're into good 
And that's too bad 
So save your flowers and your poetry 
You take a hint 
I'll take a cab 
You go to bed 
I'll find a party 
A          B
Typical is what your after 
A        D
Not some beautiful disaster 
REPEAT CHORUS
I'm really not that boring 
I'm headstrong 
And annoying 
So I don't see me fitting in your world 
I'm noisy and I'm messy 
Plus you would never get me 
hey I think you're really hot 
                       A
But I'm Not Your.....  Girl..... 
                 E
That you've been looking for 
D               E
Boy I'm not the girl next door 
A                 E               B (strum down continously)
Be happy that I'm letting you off easy 

at this part keep on doing E C#m A D A
Yeah................. 
Oh... Yeah.............. 

I'm not really that boring 
I'm headstrong 
And annoying 
So I don't see me fitting in your world 
I'm noisy and I'm messy 
Plus you would never get me 
hey I think you're really hot 
But I'm not your girl 

(I'm not your girl) 
I'm not your girl (I'm not your girl) 
I'm not your girl (I'm not your girl) 
I'm not your girl (I'm not your girl) 

No.................No no... 
I'm not ( I'm not your girl) 
E               B                E(this should be A short strum)
Boy you need to see I'm not your girl