In a shocking revelation from her new tell-all memoir, Lisa Rinna is pulling back the curtain on what she describes as the most toxic working relationship of her career—one that allegedly involved "psychological games" and daily emotional warfare on the set of Days of Our Lives.
Rinna, known for her fiery presence on The Real Housewives of Beverly Hills and The Traitors, writes in You Better Believe I'm Gonna Talk About It that her onscreen romance with co-star Robert Kelker-Kelly was a complete facade. Off-camera, she claims he was "the biggest bully" she's ever encountered in Hollywood.
"He turned my life into a nightmare," Rinna writes, according to excerpts obtained by PEOPLE. "Every morning, I walked onto set not knowing if I'd get the pleasant version or the moody one. He was like a bomb waiting to explode—his unpredictability was utterly draining."

Lisa Rinna and Robert Kelker-Kelly on 'Days of Our Lives'. NBC
Rinna details what she calls "passive-aggressive, manipulative" behavior, alleging that Kelker-Kelly would "shut her out" if she didn't comply with his demands. "His behavior involved strange psychological games," she adds, drawing a stark contrast to her reality TV persona. "When Kathy Hilton called me Hollywood's biggest bully, that was far from the truth. I have real stories about the actual bullies in this industry—Robert Kelker-Kelly is one of them."
The actress, who played Billie Reed opposite Kelker-Kelly's Bo Brady from 1992 to 1995, says the tension was so severe that it made her daily work life "a living hell." Despite their onscreen chemistry, Rinna claims they "despised each other" behind the scenes.
In a recent interview with Tamron Hall, Rinna was pressed on the drama in her book and whether she'll ever speak to some of the people mentioned again. "Likely not," she admitted. "I've made efforts. Some relationships just can't be mended. How do you move forward when the other person refuses?"
TheEntBase has reached out to Kelker-Kelly for comment, but as of now, he has not publicly responded to Rinna's allegations. A representative for Days of Our Lives declined to comment.
Rinna's memoir, released this week, promises to reveal "ALL the tea!"—and this explosive claim is just the beginning. As the book hits shelves, fans and critics alike are buzzing about who else might be in her crosshairs.