The daughter of actor Danny Dyer took to Instagram to confirm the news, after reports emerged that the pair had called it quits.
She wrote on Instagram: 'Jack and I have sadly made a decision to part ways.
She told her followers the pair planned to stay friends and "will always have a place in our hearts for each other". I hope you'll all understand.
They have both admitted that they have "bickered" while filming their new reality show, causing tension between the pair.
"Filming the show wasn't easy".
It was continued: 'They came out to a whirlwind of publicity and after a while, things started to get to them and the cracks appeared.
Who is China's Huawei Technologies and why is it controversial? Huawei is one of the world's largest telecoms companies, and is the world's second-largest smartphone manufacturer behind Samsung. It said it could not say more as Ms Meng had sought a ban on the publication of details and this had been ordered by the courts.
The book, entitled What Would Dani Do?, is expected to shine a light on the couple's relationship after their departure from the Love Island villa.
The couple, who got together during the 2018 series of the reality TV show, had been in a relationship for six months.
'But Dani and I got through it, ' he added.
They had posted touching photographs of themselves together on social media just five days ago, with Dani last week captioning a selfie of with heart emoji and the words "feeling christmassy".
Despite the split, their own spin-off show will still air on ITVBe.
The couple's split comes after an awkwardly timed Love Island: The Christmas Reunion trailer dropped during I'm A Celebrity's advert break.