Bradley Cooper and his partner Irina Shayk have called it quits after four years together.
They are now amicably working out how to share custody of their young daughter Lea De Seine, reports PEOPLE.
Cooper, 44 and Shayk, 33 began dating in 2015.
The actor and the supermodel welcomed their daughter in March 2017.
The pair was believed to come into trouble recently following reports their relationship was "hanging by a thread".
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According to sources, Shayk moved out of Cooper's home. It is understood the A-listers had been trying to work things out for their daughter.
E! News claims an insider said the pair had taken time to see if they were happier with space between them.
"They’ve spent time apart to test the waters and see if they are better off," the source said.
"They have a lot invested and it’s very difficult to completely walk away from. They are trying out different arrangements and trying to find their way. They love their little girl dearly and that’s not going to change no matter what."
It comes after Lady Gaga was forced to deny rumours of a secret romance with Cooper following their sultry performance together in A Star is Born and at the Oscars, where they sung Shallow - a hit song from the film.
Aside from their on-screen chemistry in their roles as Ally and Jack, Gaga and Cooper added fuel to the fire throughout the film's press run with their intimate interactions.
All eyes were on the two actors as they took to the stage to perform an intimate rendition of 'Shallow' at the Oscars, filled with longing looks and warm embraces.
Kimmel grilled Gaga on the much-anticipated moment, where she addressed the rumours on record for the first time.
"People saw love, and guess what, that's what we wanted you to see!" she said.
"This is a love song, 'Shallow'. The movie, A Star Is Born, is a love story."
Shayk and Cooper have kept their relationship quiet for the most part with Shayk telling Galmour UK she wanted to keep her love life out of the limelight.
"I have a lot of friends who share a lot of their personal life on Instagram or social media, very publically. I admire it and I think it's great - but I think it's all about personal choice," she said.
"Because my work life is out there I just decided my personal life will be quiet."
The couple briefly inspired engagement rumours in 2016 when Shayk was seen wearing an engagement ring.
However, a source told PEOPLE that raising their child was more of a priority than getting married.