The 24-year-old reality star fell in love with ex-TOWIE castmember Lewis during their time together in the CBB house, and they've both vowed to make their relationship work on the outside.
But that does NOT mean Lewis joining Marns on the next series of Geordie Shore.
Chatting to reporters including our colleagues at Digital Spy over the weekend, Marnie said "um, yeah" when asked if she'll return to Geordie Shore.
"There's a lot of things that need to be discussed. But I'll probably be still going back," she added, when it was pointed out being in the Geordie Shore house may be tough while dating Lewis.
But when quizzed on whether she'd like Lewis to join her, she emphatically said: "No! Definitely not!"
We doubt Lewis will mind too much, however, as he's already said he wouldn't want to appear on Geordie Shore as he's put reality TV behind him.
During a chat with Aubrey O'Day in the house, Lewis had said: "I wouldn't dream of going back on a show like that [Geordie Shore]! I don't want to be on TV!"
Of course, Aubrey then asked why Lewis was on CBB if that's how he felt!
Lewis replied: "So I can buy my mum a house!"
However, Lewis DID say in another conversation that a seven-figure pay cheque may convince him to do a spinoff show with Marnie, but added: "Love before money."
He quit TOWIE after three years on the show, where we saw him dating co-stars including Lauren Pope. Before CBB, he had taken a back step from the limelight.
Marnie, meanwhile, returned to Geordie Shore earlier this year after briefly quitting to focus on her romance with now-ex-fiance Ricky Rayment.
With thanks to our colleagues at Digital Spy.