'I Wasn't Up For The Chaos': Kate Gosselin's Ex REVEALS Secret Behind Their Split

In the aftermath of his shocking engagement announcement, Kate Gosselin's ex is finally revealing the reason he left the reality star after dating for nine months in 2015.

Millionaire Dreamstime.com founder Jeff Prescott, 53, exclusively tells RadarOnline.com that he ended the relationship just two days before he was set to begin filming his then-girlfriend's reality show, Kate Plus 8, in fear of becoming a public spectacle.

"We were supposed to film a romantic date last year on Labor Day weekend in New York," the father of three reveals, adding that the episode was almost entirely staged.

"We pretty much laid out the entire script for filming."

Even though plans were in place and the film crew was already on location, camera-shy Prescott confesses he got cold feet about taking his relationship public on reality TV.

"I decided that this sort of exposure could create a backlash in my professional and family life, and I just wasn't ready this sort of attention," the stock photo agency exec explains.

To Prescott's dismay, the reality star began to get ahead of herself, he adds. Gosselin, 41, had plans to put their professional projects on the TLC series, and producers were already discussing a future spinoff about the romance.

"It would have been a ratings bonanza," he marvels. "But I wasn't up for the chaos and pressure that would ensue."

Now, one year after the split, Prescott is smitten with his young, beautiful business grad fiancée, Jenna Sabacheuskaya, 27.