Fans will know that after Charlotte's late arrival to the house this series, she and Gary have been growing closer. So much so, that Charlotte recently revealed to Marnie Simpson she "fancies" Gaz again.
Turns out, Gary might actually feel the same. This has got trouble written all over it, right?
In scenes that will air in tonight's episode, Gary admits he is finding it "harder and harder" to remember he is in a relationship. At the time of filming, Gary was still dating his ex-girlfriend Lillie Lexie Gregg.
When Gary tries to warn off new boy Marty McKenna (he makes his Geordie Shore debut) from Charlotte and decides not to invite Lillie to the house's onesie party, his BFF Aaron Chalmers guesses something is going on.
He says: "Last time we had a party, Gaz couldn't wait to invite Lillie. I can't help but think there's something up."
At the party, Charlotte, encouraged by her girl pals, kisses another party-goer and that doesn't sit too well with her on/off flame. Gary admits he is 'jealous' to see Charlotte kissing someone else, even though he has no right to.
Gary admits: "I look over and Charlotte is pulling this lad... Charlotte, what are you doing? Do you know what it is? I'm a tiny bit jealous, but then again, I'm with Lillie."
Gary then reveals he thinks there is "still something" between himself and Charlotte, when the pair sit down for a bit of a heart-to-heart.
Charlotte notices that Lillie never made it to the party and questions why she wasn't there. Gary then tells her that if he had invited Lillie, he would have had to have been with his girlfriend all night and wouldn't be able to spend time with her."
On hearing that, Charlotte declares it "changes everything..."
Charlotte and Gary's heart-to-heart comes after MTV recently teased that Gary leaves the Geordie Shore house.
They shared a new video to Twitter last week, hinting at what's to come on the show. Charlotte and Marnie get into a fight and after comforting Charlotte, Gary appears to kiss her in the clip. He then tells his co-stars: "As long as I live with her, that flame is never going to go out."
Geordie Shore continues tonight Tuesday 19 April at 10pm on MTV.
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!