The on-off couple, who rekindled their romance in March, are said to have split following a series of arguments while on holiday in Marbella.
Joey and Sam were in the Spanish city to celebrate Sam's sister Billie's engagement to Greg Shepherd.
Joey and Sam have had an on-off relationship since 2011
A source told The Sun that Joey decided to fly home after rowing with Sam, adding, "They are constantly bickering and falling out. It's not been pretty.
Sam Faiers wishes her 'little baby' Joey Essex a happy birthday
"But the last straw was in Marbella," said the source. "The atmosphere between them wasn't healthy and Joey simply had enough. He just had to get away."
Most uncomfortable flight and coldest I have ever flew haha. Don't wear shorts and flip flops! Back home in bed :) x pic.twitter.com/KXZS3p63fS— Joey Essex (@JoeyEssex_) September 9, 2014
While Joey posted a photo of himself flying back to England, however, Sam made a point of declaring her love for the 24-year-old reality TV star.
"Love u @JoeyEssex_ xxx," she tweeted with a photo of the pair enjoying a romantic dinner together, suggesting all was well in their relationship.
Joey and Sam have had some turbulent times since they first started dating in 2011. Just two months after getting engaged in April 2013 while on holiday in Dubai, the couple called time on their relationship.
Nine months later Sam and Joey got back together, although if new reports are anything to go by it could be over again for the Essex duo.