Wife of Nashville Mayor Megan Barry's former bodyguard files for divorce after his affair

The wife of Sgt. Rob Forrest, Nashville Mayor Megan Barry's former head of security, has filed for divorce following revelations that Barry and Forrest engaged in an affair, court records show.

Penny Forrest filed for divorce on Friday in Davidson County Circuit Court, according to the court documents.

Robert Forrest's lawyer, David Louis Raybin, responded to the divorce filing.

"Mr. Forrest is aware he will shortly be served with divorce papers," Raybin said in an emailed statement. "He deeply regrets that his conduct will cost him his marriage. Given the intensely personal nature of a divorce, Mr. Forrest asks for privacy for his family at this difficult time."

Forrest submitted his retirement papers Jan. 17 and stepped down Jan. 31, the same day Barry admitted to the nearly two-year affair.

More: TBI: Nude cellphone photos, deleted chats may show evidence of crime in Mayor Megan Barry affair

Earlier that week, a lawyer for Penny Forrest had asked Metro Police that the department preserve the contents of Forrest's cellphone instead of the phone being reset or replaced. Her lawyer said it "may contain information that is important in my representation" of Forrest's wife.

In February, the Tennessee Bureau of Investigation subpoenaed and obtained Robert Forrest's city-issued cellphone.

Forrest had served in the police force for 31 years and led security details for three mayors. He accompanied Barry on out-of-town trips beginning in June 2016, and traveled with her on nine trips in 2017. Barry has said all the trips were for legitimate business purposes.

More: Nashville Mayor Megan Barry's affair: What we know

Barry told the USA TODAY NETWORK – Tennessee that the affair began in spring of 2016. She has declined to say when it ended.

This is a developing story. Check back for updates.