Brianne Delcourt - who met former EastEnders star Matt Lapinskas when she was paired with him for Dancing On Ice - has accused the actor of cheating on her while she was away visiting family.
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Speaking with The Sun, she said: "How could he be so disrespectful as to bring a woman back to our bed?
"We were having a rocky patch before I left but I thought we could work things out. This shows I never really knew Matt.
"He’s such a d***. He’s slapped me in the face."
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Matt previously split from his EastEnders co-star Shona McGarty during his time on Dancing On Ice and at the time had to deny reports that he had begun his relationship with Brianne while he was still with the actress.
Matt and Brianne had been dating for approximately five months before they moved in together in August last year.
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The pair were reportedly going through a rough patch when Brianne left their home to visit family.
When she returned, it was reported that Matt had spent consecutive nights with his Joseph And The Amazing Technicolor Dreamcoat co-star Camilla Rowland.
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Matt, best known for playing Anthony Moon on the BBC soap, claims that he and Brianne had already ended their relationship before he and Camilla started seeing one another.