These A-listers blew up their long-term relationships by falling in love with Hollywood peers! Life & Style breaks down Tinseltown’s most shocking cheating scandals.
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Kristen Stewart: An Eclipse of Judgment
Twilight stars Kristen Stewart and Robert Pattinson never confirmed their long-term romance — that is, until July 2012, when the actress, was caught kissing her married Snow White and the Huntsman director, Rupert Sanders. Issuing an apology for her “momentary indiscretion,” she proclaimed her feelings for R-Patz, saying, “I love him, I love him.” They reconciled, but split for good in 2013. She wed Dylan Meyer in April 2025.
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Eddie Cibrian and LeAnn Rimes: Lifetime Movie Material
LeAnn Rimes and Eddie Cibrian had mega chemistry on the set of the Lifetime flick Northern Lights in 2008. Alas, Eddie was married to Brandi Glanville and they had two sons, while the singer was hitched to Dean Sheremet. “I really wanted to kill [LeAnn],” the Real Housewives alum told The Sun. “I was so mad at Eddie for blowing up our life.” Now Brandi enjoys coparenting with her ex and LeAnn, who wed in 2011.
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Brad Pitt: More Than Friends With Angelina Jolie
Brad Pitt and Jennifer Aniston were Hollywood’s golden couple before he fell for Angelina Jolie while filming Mr. & Mrs. Smith in 2004. Brad and Angie denied an affair for months, but Jen filed for divorce in March 2005. A month later, “Brangie” and her son Maddox were spotted on a Kenyan beach. “There’s a sensitivity chip that’s missing,” Jen told Vanity Fair of her ex. Brad and Angie split 11 years and five more kids later.
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Julia Roberts: Real Life Runaway
Years before starring in Runaway Bride, Julia Roberts was one: The Oscar winner and Flatliners costar Kiefer Sutherland allegedly had a huge wedding planned for June 1991, but she ended things three days before and flew to Ireland with his close pal Jason Patric. “You fall in love, there’s nothing you can do about that,” Kiefer told the “Inside of You” podcast, adding everyone has since moved on. During a The Jess Cagle Interview appearance, the 24 star even admired the “courage” it took for Julia to call things off!
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Meg Ryan: Not So Sweet
In 2000, Meg Ryan shocked the world when she was seemingly caught stepping out on Dennis Quaid with Russell Crowe. Fans couldn’t believe America’s Sweetheart would do such a thing, but Meg later claimed to InStyle that now-ex Dennis had been unfaithful for years. His response to the accusation? “I find it unbelievable that Meg continues publicly to rehash and rewrite the story of our relationship,” Dennis told The New York Daily News.
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Billy Crudup: Gone in a Flash
In April 2025, Claire Danes and Billy Crudup shared a warm embrace at the NYU Tisch School of the Arts gala, 18 years after ending their scandalous relationship. Their nearly four-year romance began in 2003, when Billy left partner Mary-Louise Parker — who was seven months pregnant with their son at the time — for his Stage Beauty costar. “I was just in love with him, and needed to explore that, and I was 24,” Claire told Howard Stern.
