Last night (14 June), Marco appeared to suggest he wanted to be single in a conversation with his fellow housemate Emma Jensen. Addressing his relationship on the outside world, he told her: "Until I find the right person, I just want to be free, I just want to be a bird. Got any cool friends that I would be perfect for?"
His fiancée Kim appeared to respond on Twitter.
She chose to brush aside Marco's comment and tweeted: "Nothing like being with good friends and having a fashion show to go to, to take your mind off things. @gavinodivino @alexjames2nd thank you."
In a second tweet, Kim then added: "Out with a bunch of friend's for a birthday dinner... The purpose of life is to be happy everyday."
On entering the Big Brother house, Marco revealed that Kim had given him a "hall pass" throughout his time on the show, and he has since claimed the pair are in an "open relationship."
Viewers have since seen Marco strike up a romance with his housemate Laura Carter. The pair were seen kissing passionately on camera, before getting pretty intimate in bed together, leading fans to question whether they'd had sex.
Their steamy scenes have been branded "disgusting" by some and TV Watchdog Ofcom has received more than 250 complaints as a result. A BB spokesperson has declined to comment.
Marco and Laura have since cooled off their romance, with Laura admitting she "regrets" her actions in the house.
She said: "I regret what I've done in the house, [but] not with Marco. Marco now doesn't really interact with me now. I think he feels guilty for what he's done because of his fiancée."
Marco has since appeared to make a pass at Emma instead, calling her "super-cute" in their recent conversation.
His fiancée Kim, meanwhile, has denied she and Marco are in an open relationship. She tweeted earlier this week: "Fyi I said #hallpass NOT open relationship. I don't watch bb, but I heard this today. Worst thing I can't even talk to him #bbuk #bbmarco (sic)."
Follow us on Twitter @RevealMag for all your celeb, fashion and beauty news!
Fancy winning some GREAT prizes? Check out Reveal Competitions here!