Dyer and Fincham became a couple in the first weeks of ITV's Love Island and quickly became favourites among viewers.
The Love Island winners were a popular duo on the ITV2 reality show earlier this year, but four months after being crowned as the top couple - and six months after they first started dating on the show - they have made a decision to call it quits and go their separate ways.
Dani, the daughter of English actor Danny Dyer, confirmed the news of their split in a message posted to her Instagram story.
It's the breakup announcement Love Island fans would have never predicted. "It's been an incredible six months, and we will always have a place in our hearts for each other, but we've sadly come to the realisation that it's not meant to be long term". "I hope you'll all understand", she added.
"When they left the villa they really thought they would stay together forever, but reality soon set in and things started to get strained".
The trailer aired hours after the pair announced their split
The duo are joined with their fellow co-stars, but things look like they're going to be just as awkward for some of their contestants who have also split since the summer.
It's unclear whether the pair were together during the recently filmed Love Island Christmas Special.
A few months after leaving the villa, Jack admitted that the sexual element of their relationship improved because they lived in their own flat in Canary Wharf, which they moved into in August.