I know this is not bass tab - it is the bass notes. Note, the cords would be similar for 
the most part but the cords do not always follow the bass lines. The C bass note is 
most likely an Ab/C. I have added cords that are known.

Intro: Ab Eb Db Eb (2x)

Verse:
  Db
I remember when my heart
           Ab
caught the fever
         Db
You were standing all alone
              Ab
in the summer heat
              Db
I was with my boyfriend, my new boyfriend,
          Ab                Eb
he was as sweet as he could be
    Fm
One look at you and I was through
   Eb
my heart switched up on me

Chorus:
Ab                   Eb              Db            Eb
Like a postcard from Paris when Ive seen the real thing
          Ab               Eb                 Db          Eb
Its like finding out your diamond is from an old promise ring
Ab                          Eb                   Db     C     Bbm
Come back from your fortune teller she read your cards upside down
            Db             Eb          Ab
The meanest thing you ever did is come around
Eb          Db          Eb     Ab    Eb  Db Eb
And now Im ruined,   (yeah, yeaheh)        Im ruined

Verse:
       Db                       Ab
In the evening you can catch me daydreaming
         Db                               Ab
Did that moment seemed you real just like me
          Db
should?ve gone over, right over,
            Ab            Eb
I shouldve never let you leave,
             Fm                                      Eb
But its the never knowing that keeps this going and drives me crazy

Chorus:
       Ab            Eb              Db            Eb
Like a postcard from Paris when I?ve seen the real thing
          Ab               Eb                 Db          Eb
Its like finding out your diamond is from an old promise ring
Ab                          Eb                   Db    C      Bbm
Come back from your fortune teller she read your cards upside down
            Db             Eb          Ab
The meanest thing you ever did is come around

Bridge:
Fm
Just when I thought things were alright
    Db                      Bbm
My eyes played tricks on my mind
C
Well, will I ever be satisfied cause all I seem to find

Chorus:
       Ab            Eb           Db            Eb
Its a postcard from Paris when I need the real thing
          Ab               Eb                 Db          Eb
Its like finding out your diamond is from an old promise ring
     Ab                     Eb                   Db    C     Bbm
Come back from your fortune teller she read your cards upside down
            Db             Eb                Fm             Bbm
The meanest thing you ever did, the cruelest thing you ever did,
            Db             Eb           Ab     Eb
the meanest thing you ever did, is come around

Ending:
      Ab     Eb                              Db     Eb     (4x)
I am ruined,     (yeah,yeaheh)              Im ruined