Jennifer Lawrence and Nicholas Hoult
Jennifer Lawrence and Nicholas Hoult's relationship began on X-Men: First Class in 2011, with the pair starring as Mystique and Beast. The romance turned out not to be so great, and they broke up in 2014. The former couple was apparently able to put their past behind them when they worked together again on X-Men: Apocalypse in 2016.
Kaley Cuoco and Johnny Galecki
It's hard for any celebrity couple to keep their romance under wraps, which is why fans were shocked when Big Bang Theory's Johnny Galecki and Kaley Cuoco revealed in 2010 that they had been dating for two years.
The actors, who continue to work together on the hit comedy, are now great friends and Galecki was even one of the guests at Cuoco's wedding to Karl Cook this year.
Jennifer Lopez and Marc Anthony
Jennifer Lopez and Marc Anthony had a seven-year marriage that made them the parents of Max and Emme. Their split in 2011 came as a shock to many fans. But the former couple still makes music together. In 2016 they released the single "Forget Me and turn around", and then Anthony produced Jennifer Lopez's new Spanish album. "We met at work, and that's where we're really magical," said the "Bronx Diva."
Currently, Jennifer Lopez is in a relationship with former baseball player Alex Rodríguez, while the Puerto Rican singer is dating the young Italian model Raffaella Modugno.
Gwen Stefani and Tony Kanal
Gwen Stefani today is a happy woman with country singer Blake Shelton, but years ago she was devastated by her separation from No Doubt bassist Tony Kanal after seven years of a relationship. He was her first boyfriend, and she ended up heartbroken after they broke up in 1994.
It was a very difficult experience that almost caused the band to break up. All that pain Gwen captured in the song "Don't Speak", became an absolute hit.
On The Howard Stern Show in 2016 - more than 20 years after the breakup - Gwen admitted that it was "torture" for both of them to perform that song at their concerts.
Jennifer Carpenter and Michael C. Hall
Jennifer Carpenter and Michael C. Hall began dating shortly after the start of filming the series Dexter and went public with their marriage in 2009 after much speculation. Sadly, they filed for divorce just two years later in 2011.
However, the former couple continued to work on the final two seasons of the show. When asked what it was like to work with her ex, Carpenter said, "There's nothing but love and respect."
Jack and Meg White
Jack and Meg White of the White Stripes were able to keep their marriage a secret for most of their career, publicly stating that they were siblings. Everything became known when they announced their separation in 2000 after four years of marriage.
The exes were still able to make music together and released the hit album Elephant in 2003.
Katie Homes and Joshua Jackson
In 1998, Katie Holmes and Joshua Jackson began a real-life romance while working together on the '90s teen drama Dawson's Creek. And while their characters, Joey and Pacey, found love on the hit teen show, Holmes and Jackson's off-screen romance was short-lived.
The two continued to work together on the show until its end in 2003, and are still close friends today. "He was my first love, and it was something so incredible and indescribable that I will treasure it forever," Holmes told Rolling Stone in 1998. "And I feel very lucky because now he is one of my best friends."
Jennifer Morrison and Jesse Spencer
Jennifer Morrison and Jesse Spencer enjoyed an on-and-off relationship while co-starring on House. In 2007, the couple, who had been engaged only months earlier, issued a statement via People magazine about their split, insisting: "We are still very close and look forward to continuing to work together on House."
And they worked together for another two and a half years, at which point Morrison left the show to pursue other projects. However, after the breakup, Spencer told the Herald Sun that "I didn't know where she was for a while."
