McLean appeared to apologise to Giggs when they both arrived in the Big Brother house last week. However, the glamour model and WAG told Andrew Stone and Natalie Cassidy yesterday (January 10) that she still stood by her critical remarks on Twitter.
Natasha and McLean famously clashed before they entered the Channel 5 reality show, after the mum-of-one blasted Natasha for her eight-year affair with her brother-in-law footballer Ryan Giggs.
McLean admitted to Cassidy and Stone that she had "judged her badly", but insisted that she was right to call her to task over the affair.
"If we talk about her actions, I will still judge her," she said. "Sorry, but I still will. If we're not bringing her into the equation, I'm still going to the judge the story. I judge because I'm human."
Ex-EastEnders star Cassidy agreed with McLean, adding: "Forget her, how can a woman have children and a husband and sleep with the son's uncle? Forget her, that's unbelievable.
"That's not alright and I can't condone that. She's amazing and we get on like a house on fire, but I'll never say, 'Now I know you, everything is alright'."
Celebrity Big Brother continues tonight (January 10) on Channel 5.
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