Not entirely sure about the verses but I'm pretty sure the chorus is accurate. Let me know!

D
Girl, it should be me 
A
Driving to your house 
G
Knocking on your door 
D                                A
And kissing you on the mouth 

D
Holding on your hand 
A
Dancing in the dark 
G
Cause I was the only one 
D                            A
Who loved you from the start 

D                           A
But now when I see you with him it 
G                     A
Tears my world apart 

G (mute)
Because 
 
D
Ive been waiting 
G                        Em
All this time to finally say it 
Em                         G
But now I see your hearts been taken 
A                    G   Em
And nothing could be worse 
D
Baby, I loved you first. 
D
Had my chances 
G                        Em
Couldve been where he is standing 
Em      
Thats what hurts the most, 
G
Girl, I came so close 
A                   G   Em
But now youll never know 
D
Baby, I loved you first 




D
Girl, it should be me 
A
Calling on your phone 
G
Saying youre the one 
D                           A
And that Ill never let you go 

D
I never understood 
A
What love was really like, but 
G
I felt it for the first time 
D                 A
Looking in your eyes 

D                              A
But now when I see you with him 
G                             A
My whole world falls apart 

G (mute)
Because 
 
D
Ive been waiting 
G                        Em
All this time to finally say it 
Em                        G
But now I see your hearts been taken 
A                    G   Em
And nothing could be worse 
D
Baby, I loved you first. 
D
Had my chances 
G                        Em
Couldve been where he is standing 
Em      
Thats what hurts the most, 
G
Girl, I came so close 
A                   G   Em
But now youll never know 
D
Baby, I loved you first

D
The first touch 
G
The first kiss 
A                       Em
First girl to make me feel like this 
D
Heartbreak 
G
Its killing me 
A                       Em
I loved you first, why cant you see? 


D
Ive been waiting 
G                       Em
All this time to finally say it 
Em                             G
But now I see your hearts been taken 
A                    G   Em
And nothing could be worse 
G
Baby, I loved you first. 

D
Had my chances 
G                         Em
Couldve been where he is standing 
Em      
Thats what hurts the most, 
G
Girl, I came so close 
A                    G  Em
But now youll never know 

D
Baby, I loved you first
D
Baby, I loved you first 
D                 G 
Baby, I loved you first 
Em
Oh, yeah 
D
Baby, I loved you first