It's no secret that Charlotte has been vocal about Gaz Beadle's ex-girlfriend in the press and, until now, Lillie has been keeping a dignified silence.
However, she finally spoke up to slam comments branding her as 'fame-hungry' and now she's suggested the way Charlotte has spoken about her has been "immature."
Lillie re-tweeted a tweet posted by a fan on the social media site. The user had complimented Lillie on the way she has handled her split with Gary and him rekindling his romance with Charlotte.
It read: "Have the upmost respect for @LillieGregg and the way she has dealt with @Charlottegshore immature comments."
Making a dig at Charlotte, the fan then added: "Classy woman."
Before that, Lillie had tweeted herself: "Kill them with kindness.... My life motto no time for nastiness or negativity life is too short."
Her tweets come after Geordie Shore fans have seen Charlotte mention Lillie on several occasions on the show. She suggested to Gary that she was 'ever there if he wanted to cheat' - he had been dating Lillie at the time of filming - and Charlotte admitted the pair have 'unfinished business.'
She said: "I think I've started to fancy him again. I've not told anyone this... I have been getting closer to Gary, but me and Marnie both know nothing will happen between us because he's got a girlfriend. Buzz kill."
Since filming wrapped for series 12, Charlotte and Gary appeared to rekindle their on/off romance. Gary had told Charlotte he wanted to make a go of things with her, but she had her reservations as she still doesn't trust her co-star beau, thanks to their relationship history.
Plus, in a recent Twitter fallout, Charlotte revealed Gary had signed up for the new series of Ex On The Beach (while telling her he wanted a relationship with her), only fuelling her concerns.
MTV had no comment to make on Gary's appearance on the show. Charlotte, meanwhile, has been openly talking of Gary's second stint on Ex On The Beach and has said she isn't worried about him coming face-to-face with Lillie - who has also been rumoured to appear.
She said: "[Gaz] won't do anything with her, he hates her. He's going to absolutely torture her. He thinks she's a fame-hungry sl*t."
Lillie, however, hit back. In a lengthy post on Instagram, after a user repeated the 'fame-hungry' claims, she told them: "Maybe you should respect I fell in love with a boy that was in the media eye... I kept it quiet for 6 months... As I didn't want the world knowing about my relationship but I had no choice.
"Unfortunately we broke up and I am the one that has acted like a grown up by not tweeting / selling a story / or speaking publicly about our separation... The fact I haven't reacted to all the CHAZ remarks and nasty comments put my way is because I have some self respect and dignity."
Gary and Lillie split in November last year, with both assuring fans they had ended things on good terms.
However, we have recently learnt that Lillie and Gary's relationship ended over Charlotte. On Geordie Shore, Gary has been struggling to deal with his feelings for Charlotte and being in a realtionship.
Not only did her try to warn newcomer Marty McKenna away from Charlotte, but he also admitted he was 'jealous' to see Charlotte kissing another guy.
MTV also teased that Gary eventually leaves the Geordie Shore house to "sort his head out", after appearing to kiss Charlotte. In a teaser clip, he tells his co-stars: "As long as I live with her, that flame is never going to go out."
Speaking to Reveal recently, Charlotte hinted that Gary's exit was so he could split with Lillie. She told us she "didn't know" Gary had left because of her.
Charlotte said: "I know mine and Gary's history, but I never ever thought he was going to finish with Lillie. I thought that those two were going to get married and have children."
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