Threesome

He'd only known her for a month
when she said she was married,
she didn't think that he would mind
the secret she had carried.

Her husband was not so inclined,
when told this by her lover,
but she would not let either go,
they'd very soon discover.

So they went out and had a beer,
and quickly talked it through,
then dumped her hard and got engaged
-- she never had a clue.