The Loose Women presenter has brushed off an attempt by her rival Julie Goodyear to make nice at the show's final on Friday, branding the Coronation Street legend "unbelievable".
Digital Spy reports her as saying: "She just told me how she much loved me again. I didn't even answer. I was just like, 'Oh my God'.
"She said, 'I loved you from day one, it was all paranoia in the house. We never had a problem, you silly woman'. I just literally shook my head and went, 'Unbelievable'."
Coleen also claimed that she sussed Julie, who played Bet Lynch in Corrie, from the start.
"I went in there thinking, 'Oh, me and Julie Goodyear will get on, we're Northern lasses and all that'," she continued.
"It was just instant, the insincerity from the time she said hello hit me, and I thought, 'I've got a problem'. She really, really, really wanted to win it."
But she did concede that Julie, who was called "two-faced" after slagging off housemates behind their backs, made great TV.
"I don't like being around people like that, that are insincere and fake. But to give her her dues, she is also amazing," Coleen went on.
"She's fantastic TV. [I've got] lots of respect for her on the career front and all that, but I don't think we'll be sending each other Christmas cards."
Watch MTV News on the hour every hour on MTV - Sky Channel 126 and Virgin Channel 134