Gabby Allen "won't ever" give her cheating ex-boyfriend Marcel Somerville another chance.

Gabby Allen

Gabby Allen

The 'Love Island' couple split up earlier this week after the Blazin' Squad singer admitted he'd slept with another woman while they were on holiday together in Mexico in February and, although he's apologised profusely since, the 26-year-old beauty isn't interested.

A source told The Sun Online: "Gabby is absolutely done with Marcel. She's cancelled all their plans including a holiday and there's no way she's giving him a second chance.

"She's heartbroken and can't believe he did this to her. He's calling and messaging her trying to get her to forgive him but she's totally over it."

The 32-year-old star - who earnt himself the name "Doctor Love" during the summer series last year because of his sound relationship advice - sent a grovelling apology to Gabby via his publicist yesterday (02.05.18) when the news of his infidelity surfaced online.

His spokesperson said: "Sadly the rumours are true, Gabby and Marcel have split up. Marcel can't really defend his actions as he knows he did wrong and will regret it forever.

"Marcel is upset that he broke the heart of someone he loves and someone that he shared so many special moments with, but with all the good times there are difficult times, and sadly Marcel and Gabby had been in a bad place at this stage. Gabby was a special part of my Marcel's life, and he hopes one day she can find it in herself to forgive him."

Gabby took to her social networking sites after the news broke to thank her friends and family for standing by her and supporting her through this "tough" time.

She wrote: "Thank you to everyone for your kind messages, love and support.

"It's been tough couple of days, I think I might still be in a bit of shock! But I'm sure in time I will be OK. I have the best family and friends around me. I'm a lucky girl. (sic)"

The now-former couple met one another in the 'Love Island' villa last summer and were one of the very few remaining pairs to stay together after the show ended.

The pair raised eyebrows over the authenticity of their relationship on the programme as Gabby refused to sleep with Marcel until they were off camera and in a hotel room.

However, their romance heated up very quickly and they moved in together last year.