B means the German B, i.e. Bflat. "G..." means the same sequence as in the first line.
That's the way I once wrote it down for myself. I hope it will be useful for anyone.

Tainted Love 


[Verse]
    G     B  D#        B C       
Sometimes I feel I've got to
G    B     D#        B C
     Run away I've got to
G    B     D#             B C           G            B 
     Get away from the pain that you drive into the heart of me
     G...                  G...
The love we share seems to go nowhere
          G...                 G                      B  
And I' ve lost my light for I toss and turn I can't sleep at night 


[Chorus]

G
     Once I ran to you (I ran to you)
B
     Now I'll run from you
D#
     This tainted love you've given
   C
I give you all a boy could give you
D
Take my tears and that's not nearly all
G...
      Tainted love
G...
Oh... Tainted love 


[Verse]

G...                     G...                        G...
Now I know I've got to       run away I've got to         get away
           G               B
You don't really want any more from me
    G...
To make things right
              G...
You need someone to hold you tight
          G...    
And you think love is to pray
         G             B
But I'm sorry I don't pray that way 


[Chorus]

Once I ran to you (I ran)
Now I'll run from you
This tainted love you've given
I give you all a boy could give you
Take my tears and that's not nearly all
Oh...tainted love
Tainted love 


[Verse]

       G... 
Don't touch me please
          G...
I cannot stand the way you tease
   G...
I love you though you hurt me so
         G                B
Now I'm going to pack my things and go
G...                                   G...
       Tainted love, tainted love...      Touch me baby, tainted love...

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