
BEVERLY HILLS, CA - OCTOBER 17: Singers Gwen Stefani and Gavin Rossdale arrive at the Wallis Annenberg Center For The Performing Arts Inaugural Gala at Wallis Annenberg Center for the Performing Arts on October 17, 2013 in Beverly Hills, California. (Photo by Gregg DeGuire/WireImage)
The reason for Gavin Rossdale and Gwen Stefani's surprising divorce has been revealed.
According to a new report, insiders close to the former couple revealed Gavin, 50, repeatedly cheated on Gwen, 46, through a secret, three-year affair with their family's nanny, Mindy Mann.

Gwen, Gavin and Mindy (center) in November 2012.
The Voice star allegedly discovered explicit text messages — including nude photos and plans to meet up for sex — between her husband and Mann last February, nearly six months before the couple announced their split.
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“The iPad was linked to Gavin’s phone,” a source told Us Weekly of how the musician's messages were found. “One of the other nannies discovered the exchange and told Gwen.”

Gwen and Gavin in December 2014.
Mann was promptly fired over the incident and Gavin — who has three sons, Kingston, 9, Zuma, 7, and Apollo, 20 months, with Gwen — later admitted to cheating. "[It] completely devastated her. She was mortified, livid, and embarrassed," another insider said of Gwen's reaction.
“This was done right under Gwen’s nose,” the source added.