I never imagined my marriage would end at a company party, beneath crystal chandeliers and the smug smile of a woman in a skin-tight red dress.

But that is exactly where it happened.

And I was the one holding all the cards.

My husband, Thomas Vance, was the chief strategy officer of Crestview Technologies. For three weeks, he had swaggered around our home, dropping hints about the big announcement at the twentieth-anniversary celebration. He was certain the board would name him president. He practiced his acceptance speech in the bathroom mirror. I would lie in bed, staring at the ceiling, and listen to him rehearse words of gratitude to people he secretly despised.