One Band, Five Parties

I shouldn't be telling you this
It was told to me in confidence
But, the guilt is killing me

I have this friend
Happily married to an amazing woman
What she's doing with him
Neither God nor man knows

Now you're probably thinking
I'm jealous, and you'd be right
To a point
Anyway shut-up
And let me finish

It all started one day
About five years ago
When my mate was single
He was sitting at a bar
Drowning his many sorrows

When a fit bit of stuff approaches the bar
My mate in a drunken state says
I always get hit on 
When I sit here
This nameless wench retorts
Oh, I'm sorry
But, you lack something
I look for on a man.
He's somewhat bemused and asks
And what might that be?
Her reply was simple
A wedding ring

When he told me this story
I patted him on the back
Saying all I could say
Tough luck mate
There's plenty more fish in the sea

For the next year
He went fishing
For the one he said

Now I know
For which one he meant
When he said I do
And now you do too