Love Island: All Stars will see the return of Harriett Blackmore as she becomes the show’s latest bombshell, MailOnline can reveal.

The former Islander, 24, who starred on last year’s series, is set to confront ex-boyfriend Ronnie Vint in the South African villa after he admitted to sending co-star Olivia Hawkins flirty messages despite being in a relationship.

And the bombshell will have questions for love rival Olivia, 29, amid claims she engaged with the interaction and even PH๏τoshopped an image of the couple holding hands with her face.

Harriett and Ronnie, 28, met on the ITV2 show last summer and continued to date outside of the villa until splitting up in September.

Now, Ronnie is in a couple with TOWIE’s Elma Pazar, 31, but their blossoming romance could be under threat following Harriett’s explosive return.

A TV source told MailOnline: ‘Harriett can’t wait to confront Ronnie for embarrᴀssing her in front of the nation and will be going into the villa with all guns blazing. 

Love Island: All Stars will see the return of Harriett Blackmore as she becomes the show’s latest bombshell, MailOnline can reveal 

The former Islander, who starred on last year’s series, is set to confront ex-boyfriend Ronnie Vint in the South African villa after he admitted to messaging co-star Olivia Hawkins 

Harriett and Ronnie met on the ITV2 show last summer and continued to date outside of the villa until splitting up in September 

‘She had no idea he had been messaging so many other girls during their time together and it’s been frustrating for her to see this all play out on the show without having her say.

‘As well as Ronnie, she will have words for Olivia because her girl code wasn’t the best.

‘Harriett is still looking for love and hopes her ITV comeback will see her connect with a man who’s willing to settle down and be faithful.’

The reality star’s return comes after Bad Boyfriends host Olivia Attwood revealed on her Instagram stories that she had seen the messages between Ronnie and Olivia. 

Olivia said the All Stars contestant even jokingly PH๏τoshopped her face onto an image of Harriett holding her hands with Ronnie while they were still in a relationship.

Presenter Olivia, who starred on Love Island in 2017, has the inside story because her husband Bradley Dack is Ronnie’s best friend.  

Harriett has already reacted to Ronnie’s confession, posting an image of herself wearing a see-through black bodysuit alongside the caption: ‘Best thing you never had.’  

Her entrance follows the arrival of bombshells Grace Jackson and Ron Hall, who made their way back into the villa on Monday night’s show. 

Olivia, who is currently coupled up with Marcel Somerville, told the villa Ronnie had sent her flirtatious messages over Instagram while he was still dating Harriett

After being in a love triangle during his first appearance on the show last year, Ronnie found himself back where he started between Elma Pazar and Kaz Crossley

A TV source revealed to MailOnline Harriett is going into the villa with all guns blazing after being spoken about on the show 

In Tuesday night’s instalment, viewers will see Grace grow close to Nas Majeed after the pair bond over their love of cats. 

But their flirtation doesn’t go unnoticed by Cathrine Agbaje, who’s in a couple with Nas and has been wanting more from their pairing. 

Talking to Elma, Catherine says: ‘It’s nice to feel wanted and I just don’t, I know Nas is a slow burner… it’s just starting to get to me.’

Elsewhere in the episode, Scott Thomas and Tina Stinnes spend more time together after the Made In Chelsea star stole the Islander from India Reynolds, leaving her dumped from the show. 

Scott admits: ‘I feel relaxed, I feel chilled, a completely different experience with you and I like your vibe a lot.’

Tina adds: ‘I’m a happy person but I think you’re making me happier… I’m enjoying getting to know you every day.’

In the evening, Scott and Tina share their first kiss together, which they joke was worth the nine-year wait after they almost connected during their first appearance on Love Island in 2015.

Love Island: All Stars continues tonight at 9pm on ITV2 and ITVX