Jamie O'Hara has been accused of faking his Celebrity Big Brother romance with Bianca Gascoigne.
Jamie and Bianca went their separate ways just days after the final following a fling in the house on this year's series.
But former CBB housemate reckons the whole thing was a sham after Jamie was spotted out with his former girlfriend following the end of the series.
Marnie said: "There are rumours they were together while he was in CBB, which just shows Jamie was faking his relationship with Bianca.
"I'm upset for Bianca because I know her feelings were genuine, but Jamie was obviously just stringing her along."
Speaking to Star magazine Marnie added: "How awful."
Taking to Twitter last week, Jamie gave his side of what went down between him and Bianca, explaining: “The reason I left it with Bianca was because after I got out and sat down and looked at the whole situation I realised it weren’t for me."
He continued: "I have got a lot going on in my life and she had a boyfriend and he was devastated about the situation, I didn’t know the full extent of the situation until I got out and saw everything, as a man I didn’t do anything wrong I didn’t make any gain out of it."
Despite being totally loved up in the house it had all changed once Jamie and Bianca were out and the pair announced they would just be friends.
Bianca said in a separate interview: "It wasn’t a showmance for me. I don’t even feel comfortable talking about it."
She told new! magazine: "I’m really disappointed but I understand his decision and of course family and children should always come first."
Bianca added: "I wish Jamie all the best, he was a great friend to me in the house."
Celebrity Big Brother will return to Channel 5 in the summer.