Charlie's Brake's romance with Love Island girlfriend Ellie Brown reportedly came to crashing halt after he was allegedly caught cheating with a mystery blonde beauty.

According to The Sun, millionaire socialite Charlie, 23, told his 20-year-old partner that he was going to spend time visiting his mother in Kent — only for fans to spot him dining in the London's tony Knightsbridge district with the unnamed woman.

A source told the newspaper: 'Charlie told Ellie he was going to spend Monday night at his mum’s house in Kent which was fine. But she woke up Tuesday to several messages from fans who’d seen Charlie at Zuma in Knightsbridge having a romantic dinner with another woman.

Claims: Charlie's Brake's romance with Love Island girlfriend Ellie Brown reportedly came to crashing halt after he was allegedly caught cheating with a mystery blonde beauty on Monday

'She was told Charlie looked panicked and uncomfortable when he was approached for photos. The expectation was to see him with Ellie – not this other blonde. Ellie asked Charlie where he was on Monday night and he claimed he did come back to London but went to Nandos.

'That led to them having a massive row as Ellie knew he was lying and had photographic evidence to prove it. In the heat of the moment Charlie ended it but then rushed to Instagram to tell everyone; and that really upset Ellie. She felt incredibly hurt and disrespected.'

When approached by MailOnline, representatives for Charlie declined to comment.

Charlie appears to have rapidly bounced back from his romance woes, as he jetted off on holiday with pals on Wednesday, after sharing a video from London's Heathrow Airport while his friend approached him with two vast drinks.

Report: According to The Sun, millionaire socialite Charlie, 23, told Ellie, 20, that he was going to spend time visiting his mother in Kent — only to be spotted in London with another woman

Over! Charlie confirmed the break up on Instagram on Tuesday, posting a message on Stories which read, 'Just to inform you all, Ellie and I have decided to part ways. I wish her all the best'

The multi-millionaire heir confirmed the break up on his Instagram page on Tuesday evening, posting a message on Stories which read: 'Just to inform you all, Ellie and I have decided to part ways. I wish her all the best.'

Charlie seemed determined not to mope as he jetted off with his pal shortly after posting clips from a trip to the golf course with friends.

Geordie beauty Ellie sparked speculation the couple had called it a day when she moved out of the multi-millionaire's Chelsea mansion last week.

The 20-year-old revealed she'd packed up 25 boxes of clothes and shoes and was moving into her own apartment - but made no mention of Charlie.

Moving on: Charlie was refusing to mope as he decided to jet off on holiday with pals, after sharing a video from London's Heathrow Airport on Wednesday

Confirmation: The multi-millionaire heir confirmed the break up on his Instagram page on Tuesday evening days after Ellie moved out of his Chelsea mansion

Sharing a clip of her taxi journey to the new place on her Instagram Stories, she wrote: 'On my way to pick up keys to my first ever apartment.'

Ellie had taken the drastic step of moving into Charlie's lavish London pad just weeks after they returned to the UK following Love Island.

Their split comes after a month of break-ups for Love Island couples this month — including finalists Laura Anderson and Paul Knopps and Jack Fowler and Laura Crane.

Ellie's move to a new place comes just days after she and Charlie jetted to Gstaad, Switzerland, for an ultra-luxurious holiday in the Bernese Alps.

Moving out: Sharing a clip of her taxi journey to the new place on her Instagram Stories on Thursday, she wrote: 'On my way to pick up keys to my first ever apartment'

Girls' night: Ellie joined Love Island co-stars Zara McDermott (left) and Laura Anderson (centre) for a night out the day before Charlie confirmed the split, with Laura also recently single after splitting from Paul Knopps

The pair certainly made the most of the trip last week, indulging in naked hiking trips, spa days and breakfast in bed at their lavish hotel.

Self-proclaimed socialite Charlie proved their getaway was a cheeky one as he stripped off to flash his bum in an Instagram shot after a long day of hiking in the mountains.

Ellie followed suit, sharing a snap of herself in a skimpy blue bikini as she made the most of the spa at their Alpine lodge.

'Just when I thought this couldn’t get any better we went to the spa... can’t wait to travel and visit more of their hotels around the world,' she wrote alongside it.

Huge move: Ellie had taken the drastic step of moving into Charlie's lavish London pad just weeks after they returned to the UK following Love Island

On or off? However, Ellie then appeared to dispel the rumours as she shared a throwback snap of the pair on Love Island on Friday evening

The erstwhile lovebirds also had fancy dinners with wine on their hotel room balcony overlooking the mountains.

Ellie captioned one snap of herself looking out at the panoramic view: 'Sundays in Switzerland with blankets and wine.'

The former couple's romance had been been dogged by rumours of a secret split and that they faked their romance by setting up an intimate photoshoot, reported OK! Magazine.

An insider close to the reality stars told the website that Charlie dumped Ellie last month with the couple reconciling shortly afterwards, which was denied by a representative for the pair.

Romantic: Ellie's move to a new place comes just days after she and Charlie jetted to Gstaad, Switzerland, for an ultra-luxurious holiday in the Bernese Alps

Bum's the word: Self-proclaimed socialite Charlie proved their trip was a cheeky one, as he stripped off to flash his bum in an Instagram shot after a long day of hiking in the mountains

The source also alleged photos of the twosome kissing at a hotel in early August had been set up by Charlie.

They said: 'Charlie did dump Ellie and kicked her out of his flat, and she was trying to find somewhere else to stay.

'Charlie later asked her to meet him at a hotel, where he'd set up a paparazzi to take photos of them 'making up' and kissing. From what I hear, she didn't know it was happening.

'They're still together as a couple now, so it was probably just damage control.'

At the time, a representative for the couple denied they had split but declined to comment on whether the shoot had been set-up.