Published: Mar 22, 2011 9:20 PM EDT
Updated: Mar 22, 2011 6:21 PM EDT

COOK COUNTY, Ill.- Chicago attorney, Lauren Serafin, was all set for her wedding. She had bought her gown, reserved a venue for her wedding and booked a honeymoon in Bora Bora.

But her fiance, Robert Leighton, called the wedding off last minute, the Chicago Tribune reports.

Serafin claims that Leighton, also a Chicago attorney, owes her $62,814.71 in expenses for a wedding that never happened because of his "breach of promise," according the Chicago Tribune.

In a lawsuit Serafin filed in Cook County Circuit Court, she says that she paid tens of thousands of dollars to prepare for the wedding.

About a month before the wedding Leighton went to Las Vegas for his bachelor party and had sex with another woman, the lawsuit states.

The lawsuit says that Leighton originally denied any wrongdoing in Vegas, but later admitted that he "hooked up" with a woman and that he no longer wanted to marry Serafin.