There is a very good TAB of this already but I thought i'd put this 'play along' version 
up as well

  Em                       C
I finally boxed up all the pictures of you
            G                        D
and all the memories that you left behind

G  Em  C  D  X2

               G
Since we broke up,
          Em                   C                   D
I've been staying out late and hanging with all my friends
               G
Since we broke up,
        Em              C       D
no more Oprah on the TV only ESPN
     G          Em         C      D
And now I can't sleep till three, since we broke up
G        Em C           D
Na na na na Na na na na na

               G
Since we broke up
          Em                     C                                 D
I've been throwing lots of heat, and all the girls are checking me out
               G
Since we broke up
       Em                          C                         D
all my bills are paid, and there's cheddar in my checking account
      G           Em         C    D
And I don't think much about you, since we broke up.
G        Em C           D
Na na na na Na na na na na

C               G      B              Em     D
Everything made sense, looking from a distance
C                  G        B                  Em   D
All the things you did, and all the things you didn't
    C                   G     B              Em D
I'm starting to look to me, instead of doing you
  C                                    D
I was drunk on love but now I'm coming to

               G
Since we broke up,
                Em                        C               D
I never have to wash my sheets, I get the mail in my underwear
               G
Since we broke up,
           Em                     C                          D
I can grow out my beard, and then shave it like I just don't care
     G        Em           C    D
And I'm doing fine without you, since we broke up.
G        Em C           D
Na na na na Na na na na na

C               G     B              Em     D
Everything made sense,looking from a distance
C                  G        B                  Em   D
All the things you did, and all the things you didn't
    C                   G     B              Em D
I'm starting to look to me, instead of doing you
  C                                    D
I was drunk on love but now I'm coming to

Em                          C
Sometimes I think about the first time we kissed
             G                                D
I swore that our love would stand the test of time
Em                              C
But now that it's over, I'm not even hung-over
       G                                   D
You're out of sight, and out of my fucking mind. Suck it!

SOLO    G  Em  C  D  X2

C               G      B              Em     D
Everything made sense, looking from a distance
C                  G        B                  Em   D
All the things you did, and all the things you didn't
    C                   G     B              Em D
I'm starting to look to me, instead of doing you
  C                                    D
I was drunk on love but now I'm coming to. Yeah. Yeah, Yeah

                   G        Em C           D
Since we broke up! Na na na na Na na na na na
                   G        Em C           D
Since we broke up! Na na na na Na na na na na
                   G        Em C           D
Since we broke up! Na na na na Na na na na na
                   G        Em C           D
Since we broke up! Na na na na Na na na na na
                   G
Since we broke up! Na na na na Na na na na na

Na na na na Na na na na na