Mishtress

The name for a woman who is a side peice, desperately seeking to be the wife peice. These type of women are often referred to as "Mish" and happy to destroy families, including their own, for the quest of "twu luv". Often angry outbursts.

My husband's mishtress didn't like him having a wife, so we are getting divorced...

That mishtress is renown for imploding families...

Always the mishtress, never the wife...