I'm Pretty sure this is right, but the E7 may be off... it sounds good anyway.
Play with an acoustic sounds way better.

Em          Am   
  You were my sun
C           E7   
 You were my earth
Em             Am                  C          E7
  But you didn't know all the ways I loved you, no
Em            Am  
  So you took a chance
C              E7
 And made other plans
Em                   Am                         C              E7
  But I bet you didn't think that they would come crashing down, no
Em                     Am   
You don't have to say, what you did,
  C               E7              
I already know, I found out from him
Em                              Am                   C
  Now there's just no chance, for you and me, there'll never be
    E7                           Em  
And don't it make you sad about it   


              Am
You told me you loved me
            C               E7
Why did you leave me, all alone
Em                  Am
Now you tell me you need me
         C               E7
When you call me, on the phone
Em       Am                        C
Girl I refuse, you must have me confused
                E7
With some other guy
Em                Am                        C
Your bridges were burned, and now it's your turn
   E7
To cry
         Em     Am
Cry me a river
       C     E7
Cry me a river-er
         Em     Am
Cry me a river 
       C     E7
Cry me a river-er girl
Am       G     D   
Cry me a river-er, yea yea