Holly is NOT impressed to hear Gaz has locked lips with Chantelle and feels obliged to stick up for her best friend Charlotte Crosby - Gaz's ex.
She points out that Gaz would never have kissed Chantelle if Charlotte had been there and tells him: "You've lost Charlotte and you've lost me as a mate. I can't speak to you."
Charlotte and Gary had picked up their on/off romance during Geordie Shore's Big Birthday Battle series and following filming, the pair had tried to work out if they had a future together.
Although, they never made things exclusive between them and that led to their romance getting very complicated. Ultimately, Charlotte called it quits when she found out Gary had been with other girls while filming for Ex On The Beach's fifth series. However, Gaz insisted he had been single, as he and Charlotte had never put a label on their romance.
They publicly fell out and Charlotte announced to fans that she had left Geordie Shore to "distance" herself from Gaz.
As a result, viewers haven't seen Charlotte on Geordie Shore this time round, but Holly feels inclined to stick up for her best friend in her absence when she hears Gaz has kissed Chantelle.
Holly asks Gary if he would have still kissed Chantelle if Charlotte had been there with them and he replied: "Obviously not."
Holly then privately reveals that she had been holding out hope for Charlotte to return, but knows that now that will never happen. She says: "I was holding on to this one tiny grain of hope that Charlotte might come back. But he's chucked that grain, f*cking pissed on it, stamped on it, set it on fire and now when she finds this out, she'll never set foot in that door again."
Getting emotional, Holly tells Gary: "I don't want to get upset. I just want to fight her f**king corner."
Gaz responds: "Me and Charlotte are done. I've got to move on to a new chapter of my f**king life. I necked on with [Chantelle] once, big f**king deal. It's done! I will never go there again!"
He then vents to the camera: "Holly is putting all this on me and sometimes it's not fair. Charlotte has moved on. I am trying to do the same so sometimes Holly, keep your f**king nose out."
Chantelle, meanwhile, revealed in her exit interview with MTV (she quit Geordie Shore mid-filming for the current series) that she had apologised to Charlotte for kissing Gaz.
She said: "I told her the truth, I was never going to keep it from Charlotte. She said it wasn't nice and she didn't expect anything from us but she appreciates the fact I went and told her."
Geordie Shore continues tonight Tuesday 1 November at 10pm on MTV.
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