Former TOWIE hunk Mark aired his frustrations about Apprentice star Luisa halfway through watching CBB's one-hour episode last night (7 January).
Mark, 26, tweeted: "I cannot stand Luisa!! Jesus please someone slap the b****!! #cbb."
But Mark's outburst didn't stop there. The Heart FM radio host, who is engaged to Coronation Street actress Michelle Keegan, added: "All Luisa does is talk about someone else doing things for attention and publicity, she's the worst one for it!! #cbb."
Although Luisa wasn't involved in any of the main drama in the house last night - apart from sharing a quick kiss with Jasmine Waltz during the UFO task - she did share an opinion on Lee Ryan and Casey Batchelor's 'romance', telling Lee: "It's quite good for her [Casey] to latch on to you."
Luisa has previously branded Lee and Casey's relationship as "fake", telling fellow housemate Jasmine: "I doubt they even fancy each other. I think Lee has realised it's one of the only ways to stay. It's like the oldest trick in the book. If we had some lesbian thing we'd win."
All Louisa does is talks about someone else doing things for attention and publicity she's the worst one for it !! #cbb— Mark Wright (@MarkWright_) January 7, 2014
Mum-of-one Luisa has been far from quiet in the house and showed off her daring ways this week after participating in a game of truth or dare with Dappy and Jasmine. Although later, businesswoman Luisa claimed that N-Dubz star Dappy was "most aware" of the cameras out of all the celebrities. But judging from Mark's latest tweets - he doesn't quite agree!
Seeing as Mark isn't a fan of Luisa, we wonder who else he is backing to win the show? We're sure Mark will be cheering on fellow Essex girl Sam Faiers, who was his fomer TOWIE co-star and former flame once upon a time!
With a love triangle, tears, confrontations and two official Big Brother warnings already dished out, we can't wait to see what else will happen in the house.
Check out the full CBB line-up below:
Copyright: Channel 5