Marnie is set to return to the Geordie Shore house to film for the MTV reality show's next series, despite initially having her reservations about continuing with the show now she is dating former TOWIE star Lewis.
She has since said that Lewis supports her decision to film Geordie Shore, and the pair "will make it work regardless" when it comes to their romance. However, Scott isn't so sure and had previously claimed to Star magazine that Marnie will 'cheat' on Lewis with her former flame and co-star Aaron Chalmers.
He said: "Put it this way, she was getting with Aaron, she went in Big Brother, she got with someone else. She's going in the house with Aaron, she's going to get with him. It's just the way Marnie's brain works."
Now, Marnie has hit back at Scott's claims in an interview with Daily Mail. She said: "It made me so angry that Scott said that. We aren't talking because of it."
"I understand if people would say it because of the past, but it's the fact that it's coming from Scott Timlin who's the biggest cheat," she claimed. "I can't remember the last time he was faithful, so I find it very ironic and rich coming from him and it made me really angry."
When contacted by Reveal, a rep for Scott declined to comment.
Marnie also added that she isn't "looking forward" to going back into the Geordie Shore house, but is glad to have the other girls filming with her. She added: "Lewis is not worried about Geordie Shore. He knows me."
Her cousin, Sophie Kasaei, meanwhile assured Reveal that Marnie is "strong enough" to film Geordie Shore while dating Lewis on the outside. She exclusively told us: "Marnie has had boyfriends on the outside before, so I think she knows how to deal with it. I've given her advice and the thing is, I don't think Lewis would ever be involved with the show and come in [the house] which is probably better."
"Marnie is very in love with Lewis," Sophie claimed. "Even though they do have their ups and downs, I would say that she is probably strong enough to go in there with a boyfriend."
Lewis and Marnie met while starring on Celebrity Big Brother this summer, and have continued their romance on the outside.
In the house, Marnie had expressed her concerns at heading back onto Geordie Shore - especially because it means reuniting with her ex Aaron.
She had told her housemate Renee Graziano :"I don't even know if I'd want to put myself in that situation, because even though the way I feel about Lewis, there is an ex-boyfriend on there who I have always had feelings for and just being in that environment where I'm drunk, I don't know what I'm doing... you've heard some of the crazy sh*t I've done."
However, since then Marnie has confirmed she will continue working on Geordie Shore, claiming on This Morning: "I don't think I will ever leave Geordie Shore. [Lewis is] totally fine with me going back."
Since being on the outside, Marnie has admitted her relationship with Lewis has been "difficult." The pair sparked speculation they had split, earlier this month, but during an appearance on Loose Women, Marnie assured fans she and Lewis are still very much together.
She also addressed going back into the Geordie Shore house and told the panel: "I've been in there with a relationship in the past and it's tough but I got through it. And I hadn't cared about anyone like I do about Lewis."
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