This series, Lewis and Marnie coupled up pretty early on and since then, fans have seen the pair's romance heating up. From their steamy kisses to Lewis' recent declaration that he "loves" Marnie, it seems like he is pretty in to her.
However, Lewis and Marnie, who share the same agent, have had some viewers claim their romance is all for the cameras, but Billie seems to think that their close relationship is pretty genuine.
We caught up with Billie ahead of the launch of her new collection with In The Style and she exclusively told Reveal: "I don't think it's a showmance because they're both single and they probably both really fancy each other."
She did, however, admit she has some doubts about whether Lewis and Marnie's romance will survive on the outside. Billie added: "Whether or not it will be something bigger when they both come out, I don't know. I don't think it will and I think it's just a bit of fun in the house. You spend so much time with people in there, it's inevitable that might happen."
CBB fans recently saw Marnie questioning her romance with Lewis, and she asked her housemates whether she and the Essex boy are well matched.
Marnie said: "[Lewis is] so fit, isn't he? So sexy, unreal." She then asked: "Do you not think he is too good-looking for me?"
Renee Graziano told Marnie that she is "absolutely beautiful" and needs to give herself more credit, but Marnie then said: "But what about the way he goes on? He's a proper gentleman and that. He's into his fitness. He's always worked."
Lewis, meanwhile, has made no secret of how much he likes Marnie. In fact, viewers recently saw him drop the L-bomb while singing about his housemate and Marnie was quick to tell the others.
She said: "Lewis just dropped the L-bomb... it was in a song. You know he does those raps... He did the whole song and then went, 'And I just love her' and then he carried on. Do you think he meant it."
Ricky Norwood told Marnie: "He meant it. That's a subtle way of [saying it]."
Lewis, meanwhile, has been criticised for pursuing Marnie, when she is the ex-fiancée of his former co-star Ricky Rayment. Suggesting he doesn't agree with their romance, Ricky recently liked a tweet that read: "@RickyRayment whaaaaaaaat @lewis_bloor snaking you like that."
Ricky had proposed to Marnie out in Greece during series eleven of Geordie Shore, but the pair confirmed their split a few months later.
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