‘I found out my boyfriend cheated on me while watching Love Island’: Sean Stone’s ex-girlfriend on his shock infidelity confession that he was unfaithful TWICE during four-year romance

Sean Stone ‘humiliated’ his ex-girlfriend after the Love Island contestant confessed to being unfaithful twice during their four-year romance on national television.

The confectionery salesman, 24, abruptly ended his relationship with beautician Nikki Overton, 21, in December, a move she believes was so he could audition for the ITV2 series, with him later being announced as part of the original lineup.

And now friends close to Nikki say she has been ‘shocked’ and ‘saddened’ while watching the show as Sean has admitted to betraying her, including with one of his customers after he claimed: ‘One lucky lady wanted more than sweets, so she got the sweet D.’

He also owned up to his infidelities during a game of Never Have I Ever, where he said: ‘It was about two years into the relationship, I had sort of checked out and I went out on a mad one and lipsed another bird… you learn from your mistakes.’

The scenes have been a painful watch for Nikki, whose friends have revealed she is ’embarrassed’ to discover her biggest fears during their romance have proven to be true.

The confectionery salesman abruptly ended his relationship with beautician Nikki Overton (pictured) in December, a move she believes was so he could audition for the ITV2 series

Friends close to Nikki say she has been ‘shocked’ and ‘saddened’ while watching the show as Sean has admitted to betraying her, including with one of his customers

Sean is coupled up with Matilda Draper, who he gyrated on during the show’s Heart Rate Challenge this week wearing a top hat ladened with sweets and matching swim shorts 

A source told MailOnline: ‘Sean has completely humiliated Nikki, the last thing she expected when he was announced for Love Island was to confess to cheating on her.

‘She has been so shocked and saddened by his admissions, it’s not easy with the entire nation watching and obviously her friends and family know they were together for four years, so can work out the timings.

‘Nikki believed they had a strong relationship but now she is doubting their connection… She had her suspicions over the years, which have been confirmed in the worse way possible.’

Sean admitted during one of his promotional videos for the show: ‘I have actually had a one-on-one delivery before with a very sweet ending for someone.

‘Basically, it was a personal delivery back in the day, one lucky lady wanted more than sweets, so she got the sweet D.’

Sean set up his confectionery business Sweet Delivery three years ago during the time he was in a relationship with Nikki.

He started dating the beautician when she was 17 and the former couple enjoyed several holidays together in Dubai. 

While speaking to his co-stars, Sean expressed his remorse over the betrayal and vowed he wouldn’t be disloyal to a partner again. 

Sean started dating the beautician when she was 17 and the former couple enjoyed several holidays together in Dubai 

The pair were also seen passionately kissing on the villa’s terrace, as Sean embarks on his first romance after being rejected by several of his co-stars

Prior to Matilda’s entrance, Sean had attempted to romance Jess Wright to no avail and was friend zoned by Harriett Blackmore 

His romance with Matilda has been heating up ahead of the show’s Casa Amor ‘loyalty test’ where Islanders are challenged with remaining faithful to their partners

The Islander is currently coupled up with Matilda Draper, 24, who he gyrated on during the show’s Heart Rate Challenge this week wearing a top hat ladened with sweets and matching swim shorts in tribute to Willy Wonka. 

The pair were also seen passionately kissing on the villa’s terrace, as Sean embarks on his first romance after being rejected by several of his co-stars.

Prior to Matilda’s entrance, Sean had attempted to romance Jess Wright to no avail and was friend zoned by Harriett Blackmore.  

But his romance with Matilda has been heating up ahead of the show’s Casa Amor ‘loyalty test’ where Islanders are challenged with remaining faithful to their partners while being tempted by the arrival of new contestants.  

Emma Milton, who reportedly shares ‘history’ with footballer Jack Grealish, has been announced as one of the bombshells sent in to lure the boys away from their couple.

MailOnline has contacted a Love Island spokesperson for comment.