Oracle exec Charles Phillips and mistress YaVaughnie Williams

Phillips, president of the software giant Oracle, was married to his wife, Karen, during Phillips' eight-and-a-half-year extramarital affair with Wilkins.
When Wilkins learned Phillips was reconciling with his wife, she decided to get even, reports the New York Post. Wilkins spent close to $250,000 on the revenge.

She developed a website and put a billboard in New York's Time Square, one in Atlanta, and one in San Francisco, where Oracle is based. 

YaVaughnie Wilkins, jilted mistress of Oracle exec Charles Phillips

The jilted mistress who put up a Times Square billboard as an apparent act of revenge against her married mogul ex thinks men who tie the knot are suckers.

YaVaughnie Wilkins was still dating Oracle software guru Charles Phillips when she wrote an impassioned essay warning men of the perils of matrimony.

"Men need to be cognizant of the devastating penalties for making the mistake of loving a woman and at some point changing his  mind," Wilkins, a then-San Francisco State University journalism student, wrote in 2004