Dakota Johnson was ready to walk down the aisle — but Chris Martin wasn’t, and it cost them their relationship, an insider has claimed.

The nepo baby actress, 35, and the Coldplay frontman, 48, began dating in 2017, got engaged years later, and on June 4, it was revealed they had quietly called it quits.

A source told DailyMail.com, ‘Their relationship has been over for a long time, they just haven’t been able to figure out how to make it official.’

As fans spiraled over the A-list breakup, a source dished on the split on Tuesday.

‘She was sick of him dragging his feet on setting a date for the wedding,’ a source claimed to Page Six.

DailyMail.com has contacted representatives for Martin and Johnson for comment.

The news comes just days after Martin sparked speculation with a cryptic shout-out to Dakota at Coldplay’s Las Vegas show on Friday.

As fans spiraled over Dakota Johnson and Chris Martin’s breakup, an insider revealed the real reason behind the split on Tuesday: Martin’s cold feet; (Dakota on June 7)

‘She was sick of him dragging his feet on setting a date for the wedding,’ a source told Page Six; (Martin in 2024)

‘Thank you so much everybody,’ the Paradise singer said to the sold-out crowd at Allegiant Stadium, before unexpectedly referencing Johnson’s latest film.

‘Be kind to yourself, be kind to each other,’ he admonished before adding, ‘Don’t forget to see Materialists! We love you!’ in video shared by Deuxmoi.

While the person who shot the video seemed to think the promotion meant ‘THEYRE NOT BROKEN UP,’ others disagreed.

‘I can totally seeing him supporting her even after the break up,’ another stated.

‘You can breakup with someone and still be supportive. Look at him and GP,’ said one fan, referring to the hitmaker’s successful relationship with ex-wife Gwyneth Paltrow.

‘I mean, didn’t he help pioneer conscious uncoupling?’ asked a fan, referring to the way Martin and Paltrow formally parted in 2014, although their divorce was not finalized until two years later.

Reps for the pair have not officially confirmed their split.

Last week, DailyMail.com’s source said the 50 Shades of Grey star ‘held a flame for them to be together because she loved him so much and loved his kids so much.’

A source told DailyMail.com, ‘Their relationship has been over for a long time, they just haven’t been able to figure out how to make it official’ (seen in May)

The news comes just days after Martin sparked speculation with a cryptic shout-out to Dakota at Coldplay’s Las Vegas show on Friday

The insider continued: ‘Dakota is devastated that she isn’t going to be around his kids as much anymore, but wants them to know that she is always there for them.’

They added that there is a chance the pair may reconcile but ‘right now, being separated will do wonders if they were to have any type of future together.’

DailyMail first reported trouble between the pair in August 2024 but a rep later confirmed they were still together.

The pair had a brief rumored split in 2019 which was alleged to be over Martin pushing for them to have children, but they quickly got back together.

Martin famously split from Paltrow the mother of his two children Apple, 21, and Moses, 19, in March 2014 after ten years of marriage.

The then-Hollywood power couple described their separation at the time as a ‘conscious uncoupling’ and had their divorce finalized in July 2016.

Martin was reported to be in an on-and-off relationship with actress Annabelle Wallis before they split in August 2017.

He was first seen with Dakota at a sushi restaurant in Los Angeles in October 2017 when they were reported to be ‘cozy, laughing and affectionate’.

Chris famously split from actress wife Gwyneth Paltrow , the mother of his two children Apple, 21, and Moses, 19, in March 2014 after ten years of marriage

The then-Hollywood power couple described their separation at the time as a ‘conscious uncoupling’ and had their divorce finalized in July 2016; (pictured in 2014)

Dakota, the daughter of Don Johnson, 75, and Melanie Griffith, 68, was spotted a month later at a Coldplay concert in Buenos Aires, Argentina, leading to fans posing social media pictures of her enjoying the show.

The couple were seen out on more dates around Los Angeles in early 2018.

But it was nearly a year later that they made their first openly public appearance together at Stella McCartney’s Autumn 2018 Collection show in LA.

Dakota appeared to confirm her relationship with Martin in an interview with Tatler in September 2018 when she said: ‘I’m not going to talk about it, but I am very happy.’

The following November, she is said to have met Paltrow, her new husband Brad Falchuk, and Martin’s children at a Thanksgiving dinner

A source told PEOPLE at the time: ‘They’re a total modern family and had a great time celebrating together.’

The couple were spotted again with Paltrow and Falchuk on the beach in the Hamptons, New York, in August 2019.

Paltrow opened up about her ex-husband’s relationship with Dakota in a 2020 interview with Harper’s Bazaar, describing how the actress had become part of her family.

She said: ‘I love her. I can see how it would seem weird because it’s sort of unconventional. But I think, in this case, just having passed through it iteratively, I just adore her.’

Johnson gushed over Martin’s children in a 2024 interview, saying: ‘I love those kids like my life depends on it. With all my heart.’