The love triangle: it's often used as a plot device in our favorite movies and TV shows because of the irresistible drama created by a character torn between two lovers. However, with the recent David Letterman sex scandal and rumors swirling about Justin Timberlake's alleged double duty with Jessica Biel and Rihanna, we're reminded that, in Hollywood, these sticky situations happen just as often off-screen as on. And in real life, love triangles aren't quite so much fun. The fallout can be devastating for everyone involved—both emotionally and career-wise.
While it only takes two to tango, it takes three to get on YourTango's list of Hollywood's most unforgettable and bizarre love triangles.
More from YourTango: Jennifer Lawrence Talks About Her Sex Toys On 'Conan'?!
Jennifer Aniston/Brad Pitt/Angelina Jolie – When Pitt and Jolie began a relationship on the set of 2005's Mr. & Mrs. Smith, the public's collective heart broke for Aniston, everyone's favorite "friend." It was the breakup heard 'round the world—the one that we just can't get over, and the one that the media can't seem to let Aniston forget. Jennifer Aniston Mocks Her Love Life
More from YourTango: 'Fifty Shades' Friday: Catch Up On The Week's Biggest News!
Mary Louise Parker/Billy Crudup/Claire Danes – In 2003, Crudup alienated the majority of his female fans when he abruptly left Parker, his partner of eight years, for Danes…while Parker was seven months pregnant with his son! But if the best revenge really is living well, then Crudup received his comeuppance when he remained one of those "almost famous" people just as Parker's star was on the rise. Since the breakup, she's won several awards for her roles in the HBO mini-series, Angels in America, and the popular Showtime series, Weeds.
Dennis Quaid/Meg Ryan/Russell Crowe – Fans were shocked when the seemingly perfect coupling of Ryan and Quaid came to an end in 2000. Although the breakup was widely believed to have been a result of Ryan's short-lived affair with Crowe, whom she met on the set of Proof of Life, Ryan revealed last year that Quaid had been unfaithful to her for much of their marriage. Regardless of what the couple's true problems were, most of us still blame the Aussie bad boy for America's Sweetheart's fall from grace.