Jilted Fiancée Sues Over Vegas Fling Man had 'fiduciary duty of implied fidelity,' lawsuit states By Rob Quinn, Newser Staff Posted Mar 17, 2011 2:42 AM CDT 4 comments Comments After the woman discovered what happened in Vegas, her fiance told her the wedding was off, according to the lawsuit. (AP Photo/Jae C. Hong) (Newser) – What happened in Vegas has ended up in a Chicago court: A woman accused her fiancé of cheating on her in Vegas, and then was jilted weeks before they were due to marry. Now she's suing him for $62,000 to cover the cost of wedding and honeymoon preparations, ABC News reports. She discovered through text messages on her fiancé's phone that he had sex with another woman after his Vegas bachelor party, according to the lawsuit, which says the alleged philanderer breached his "fiduciary duty of implied fidelity." The former couple are both attorneys.