In an interview given shortly before entering the ‘CBB’ house, Lauren remains adamant that she’s not fazed that Mark - who she dated for 11 years, until their split in 2011 - has now found love with former ‘Coronation Street’ actress Michelle Keegan.
Speaking to OK! magazine, Lauren reveals: “Mark doesn't enter my head at all and that's the God's honest truth. I don't think of Mark, I don't think of them.”
Lauren even goes as far as to say she is pleased the engaged couple have found each other, adding: “I'm happy for that he’s happy, because I'm over it. I have no bitterness.
“It's part of my past and that's where it stays.”
Despite her protestations to the contrary, Lauren appeared to have publicly hit out at Mark and Michelle on her Instagram page earlier this month, uploading an image that read: “I’m not going to be the girl you marry, but I’ll be the girl you’ll be thinking of 20 years from now while you engage in polite sex with your boring wife…”
It’s since been reported that Michelle was not at all pleased with Lauren over the post, with a source telling Closer magazine: “Michelle got hold of Lauren’s number and messaged her to say ‘back off’ and leave them be.”
Earlier this year, Mark publicly hit out at Lauren on his Twitter page, claiming he was fed up of her discussing their relationship in interviews and on social media.
In tweets addressing Lauren directly, he wrote: “Its been well over 2 years and it still continues. I find it so disrespectful to myself but more importantly, my fiancé. Be a proper woman.
“Please leave me out of your public conversations, stop embarrassing yourself. Start having some respect and MOVE ON.”
However, Lauren was insistent that she had put their relationship behind her, replying with the hashtag: “#MovedOnALongTimeAgo”.
Meanwhile, her former co-star Sam Faiers has admitted she's not sure whether or not it was a good idea for Lauren to enter the 'CBB' house on Monday night.
Read more of what Lauren had to say in this week's OK! magazine, out now.