Great song! This is the acoustic portion that plays during the whole song.
Tuning: Standard

Chords used:

A (x02220@1)B (x2444x@1)D (xx0232@1)ex (022000@1) x  x
Bx (x2444x@1) x  x
Gx (320003@1) x  x
D7 (xx0232@1) 9  14
A7 (x02220@1) 9  14
E5 (022100@1) 7  12

Or the other variations, whichever you prefer.

AWe (x02220@1)fell in love this summer
       BBy (x2444x@1)the spring time we were done
D (xx0232@1)                   AIs (x02220@1)it any wonder that I didn't run?
           
No amount of equations 
       Bcould (x2444x@1)tell you what went wrong
DI (xx0232@1)could see straight through you 
          AYou (x02220@1)turn clear in the sun
                               BLet's (x2444x@1)start all over, let's go back to square one 
D (xx0232@1)                             AI (x02220@1)never loved you, I've never loved anyone 
                                BI (x2444x@1)could sit and wonder about where I went wrong
D (xx0232@1)                         AOr (x02220@1)I can go out Friday and try to have fun 
                    BYou (x2444x@1)say nothing and I know its true 
D (xx0232@1)                     AYou (x02220@1)say nothing and it comes right back to you

BI (x2444x@1)hope he treats you better, I hope that he'll take you out 
D (xx0232@1)                                  AI (x02220@1)hope he'll support you when there's no one around 
                                     BI (x2444x@1)guess I'm gone forever I guess I moved to a new town
D (xx0232@1)                         ASo (x02220@1)I won't forget you, I'm writing it all down
                    BYou (x2444x@1)say nothing and I know it's true
D (xx0232@1)                    AYou (x02220@1)say nothing and it comes right back to you

Was it you or was it me?

Was it you or was it me?

Was it you or was it me?

Was it you or was it me?