After a year and a half together, Sean Penn and Charlize Theron have reportedly broken off their engagement, according to Us Weekly.
Sources say that Theron, 39, ended it with the "Milk" actor after their most recent trip to the Cannes Film Festival, where they made several high-profile appearances together. Recent reports said the "Mad Max" bombshell postponed the wedding for fear of marriage "ruining everything."
Theron recently called Penn the love of her life in an interview with Elle, but working on "The Last Face" with him threatened the relationship.
"Putting aside that he's my partner, he's the love of my life; for the first time, I felt that my work was really bleeding into my life and that made it hard."
Penn, 54, also praised his wife-to-be in an interview with Esquire UK, and mentioned he was ready to settle down with Theron after two notable failed marriages with Madonna and Robin Wright.
"You say I've been married twice before, but I've been married under circumstances where I was less informed than I am today," Penn said. "So I wouldn't even consider it a third marriage, I'd consider it a first marriage on its own terms if I got married again."
The A-list couple, both Oscar winners, got together in December 2013, after knowing each other for decades and secretly got engaged on a trip to Paris after one year of dating.
Charlize Theron/Sean Penn
Sean Penn and Charlize Theron reportedly call it quits
HOLLYWOOD, CA - FEBRUARY 29: (HOLLYWOOD REPORTER AND US TABS OUT) Actor Sean Penn poses with his Oscar for Best Performance by an Actor in a Leading Role next to Charlize Theron and her Oscar for Best Performance by an Actress in a Leading Role during the 76th Annual Academy Awards at the Kodak Theater on February 29, 2004 in Hollywood, California. (Photo by Frank Micelotta/Getty Images)
LOS ANGELES, CA - APRIL 18: Actress Charlize Theron and actor Sean Penn attend the Points of Light generationOn Block Party on April 18, 2015 in Los Angeles, California. (Photo by Michael Kovac/Getty Images for generationOn)
LOS ANGELES, CA - FEBRUARY 27: Sean Penn and Charlize Theron pose with Pharrell Williams at Bionic Yarn, G-Star and Hennessy Privilege Celebrate Pharrell Williams and his Oscar nominated single, 'Happy' on February 27, 2014 in Los Angeles, California. (Photo by Dimitrios Kambouris/Getty Images for One View)
LOS ANGELES, CA - JANUARY 10: Actor Sean Penn and actress Charlize Theron attend the 'Help Haiti Home' gala at Montage Hotel on January 10, 2015 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - JANUARY 10: Charlize Theron, Founder and CEO of J/P Haitian Relief Organization Sean Penn and Former President of the United States Bill Clinton attend the 4th Annual Sean Penn & Friends HELP HAITI HOME Gala Benefiting J/P Haitian Relief Organization on January 10, 2015 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for J/P Haitian Relief Organization)
PARIS, FRANCE - JULY 07: (L-R) Sean Penn and Charlize Theron attend the Christian Dior show as part of Paris Fashion Week - Haute Couture Fall/Winter 2014-2015 on July 7, 2014 in Paris, France. (Photo by Pascal Le Segretain/Getty Images)
Charlize Theron and Sean Penn attend the world premiere of Universal Pictures 'A Million Ways To Die In The West,' at the Regency Village Theatre in Los Angeles, California, May 15, 2014. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
WESTWOOD, CA - MAY 15: Actress Charlize Theron and actor Sean Penn arrive at the Los Angeles Premiere 'A Million Ways To Die In The West' on May 15, 2014 in Westwood, California. (Photo by Jon Kopaloff/FilmMagic)
HOLLYWOOD, CA - MAY 07: Actors Sean Penn (L) and Charlize Theron attend the premiere of Warner Bros. Pictures' 'Mad Max: Fury Road' at TCL Chinese Theatre on May 7, 2015 in Hollywood, California. (Photo by Kevin Winter/Getty Images)
PARIS, FRANCE - JULY 07: Sean Penn and Charlize Theron attend the Christian Dior show as part of Paris Fashion Week - Haute Couture Fall/Winter 2014-2015 on July 7, 2014 in Paris, France. (Photo by Dominique Charriau/WireImage)