While the supermodel supported him all the way throughout his amazing awards season run, thanks to his critically acclaimed hit A Star Is Born, the two have decided to part ways after four years of dating.
The two had been linked together since 2015 and share 2-year-old daughter Lea. However, little was known about their romance due to both stars being notoriously private. As we bid farewell to another Hollywood couple, let's take a look back at their love story.
April 2015: Cooper and Shayk are spotted on NYC dates
Cooper and Shayk were first linked together in April 2015, when they were spotted attending a production of Finding Neverlandtogether. Both stars were coming off of high-profile romances. Cooper and model Suki Waterhouse split in March 2015 after two years of dating, and in January of that same year, Shayk split from soccer pro Cristiano Ronaldo after five years of dating.
By May 2015, the two were totally together. The duo was snapped kissing in New York City after going to the late showing of Hamilton at the Public Theater. A source told ET at the time that Cooper was being "quite the gentleman" and wasn't afraid to be affectionate with the model, showering her with lots of PDA. The two were holding hands and "smiling and laughing" the whole time, and "seemed like a couple that are really happy together," the source added.
March 2016: Cooper lays a kiss on Shayk in public
Though Cooper was careful not to show PDA with past loves like Renee Zellweger and Waterhouse, he made an exception for Shayk. The happy couple showed up to the L'Oreal Red Obsession Party as part of Paris Fashion Week in March 2016 and were snapped in a passionate kiss.
July 2016: People are pretty sure Cooper and Shayk were fighting at Wimbledon
Cooper and Shayk appeared to be over the honeymoon phase at Wimbledon a few months later. A bearded Cooper was caught on camera speaking intensely to Shayk, who appeared to be dabbing tears out of her eyes, before crossing her arms and refusing to look at him. Not surprisingly, social media had a field day with the candid clip, speculating on what the two appeared to be arguing over.
But it was all good again by the end of the year. ET confirmed that Shayk was pregnant with their first child together in November 2016, and she debuted her tiny baby bump at the Victoria’s Secret Fashion Show on Nov. 30.
The two sparked rumors that they were engaged when Shayk was spotted with a gorgeous emerald ring on that finger while out and about in Los Angeles.
March 2017: Shayk gives birth
Shayk gave birth to their daughter on March 21, and the couple decided to name her Lea De Seine Shayk Cooper, according to her birth certificate.
September 2017: Shayk playfully grabs Cooper's butt in rare PDA appearance together
The parents were affectionate as ever a few months later. The model was snapped grabbing her man's butt during an outing in Malibu.
May 2018: Cooper and Shayk make their red carpet debut at the Met Gala
After three years together, Cooper and Shayk finally made their red carpet debut in style at the 2018 Met Gala. The two held hands as Shayk looked stunning in a gold Atelier Versace gown featuring a feather train, while Cooper looked dapper in Tom Ford.
December 2018: Cooper supports Shayk at Versace fashion show
Shayk and Cooper have plenty going on in terms of their separate careers, and Cooper made sure to support his girlfriend at the Versace pre-fall 2019 fashion show at the American Stock Exchange building in New York, where she walked the runway.
January 2019: Cooper and Shayk make a fabulous pair at the 2019 Golden Globes
Shayk returned the favor one month later, when she showed her support for Cooper at the 2019 Golden Globes. Cooper was nominated for two Globes at the awards ceremony, where he looked handsome in an all-white custom Gucci tuxedo. Meanwhile, she looked incredible as usual rocking a curve-hugging gold Atelier Versace number that featured a thigh-high slit.
February 2019: Shayk shares why she doesn't talk about her relationship
“I have a lot of friends who share a lot of their personal life on Instagram or social media, very publicly," she noted. "I admire it and I think it’s great, but I think it’s all about personal choice. Because my work requires me to be out there, I just decided my personal life will be quiet. That’s why it’s called personal, because it’s something for you and your family, and I feel happy with it.”
February 2019: Cooper thanks Shayk during BAFTAs acceptance speech
Cooper won the 2019 BAFTA Award for Best Original Music at the London, England, ceremony on Feb. 10, and took time out of his speech to thank Shayk.
"I also need to thank Irina for putting up with me while I was trying to make music in our basement for a year," he said.
And while the two didn't pose together on the red carpet, Shayk joined Cooper at the BAFTAs, looking chic in a black suit.
February 2019: Cooper and Shayk touch down in NYC after big wins at BAFTAs and GRAMMYs
June 2019: Sources say Cooper and Shayk "have been unhappy in their relationship"
A source told ET in early June that the couple was not getting along even before he started filming A Star Is Born.
"Bradley and Irina have been unhappy in their relationship for some time and have tried to make it work," the source said. "They both want the best for their daughter, but seem to be coming to terms with the fact that staying together might not be for the best."
"Their troubles have been going on for quite some time and they even considered splitting during the release of the movie," the source added. "They talked things through a great deal and seemed to hold off and keep up appearances for the time being. It was recommended they delay a split at what seemed to be the peak of his career because the negative attention would take away from the excitement of the release."
According to the source, the two breaking up was a very real possibility. "Bradley and Irina are trying to work it out, and their friends are still holding out hope, but it doesn't look good and friends are concerned [the relationship] won’t last," the source said.
June 2019: Cooper and Shayk call it quits
Just days after rumors circulated that their relationship was on the rocks, multiple sites reported that Cooper and Shayk broke up after four years of dating.
See more on their relationship and troubles in the video below.