‘Geordie Shore' Series 12 spoilers: Marnie and Charlotte square off in an epic girl fight

All hell breaks loose in “Geordie Shore” tonight, as two of the fans’ favourite lasses engage in what could be the most explosive brawl ever. On Tuesday night, Marnie Simpson and Charlotte Crosby turn from friends into sparring housemates. The two come to blows after Marnie breaks an unwritten rule every woman should know: never mess around with a friend’s man.

When Marnie made a big comeback two episodes ago, everybody in the house welcomed her with open arms. However, it’s not long before Marnie becomes embroiled in an intense fight, originally with Chloe Ferry. Apparently, Chloe’s issues with Marnie reignited some of Charlotte’s unresolved hatred towards the returning reality star.

On April 26, watch as Marnie and Charlotte go head to head, and see the response of the other “Geordie Shore” cast from the ringside, including Holly Hagan, Chantelle Connelly, Marty McKenna, Scott “Scotty T” Timlin, Gary "Gaz" Beadle, Aaron Chalmers, Nathan Henry.

Spoiler alert! This update contains more "Geordie Shore" spoilers. Read on at your own risk if you have not watched the latest episode.

MTV has posted sneak peeks [watch below] of the reality show’s seventh episode, which is due to air on Tuesday night.

On the first teaser, Marnie decides to flirt with Marty in an effort to get back at Aaron. She ends up giving him a quick peck on the lips, which enrages Chloe, who slept with Marty on the previous episode. Chloe and Marty have history together, being friends with benefits even prior to “Geordie Shore.”

[READ: “'Geordie Shore' Series 12 spoilers: Marty fools around with Chloe, clashes with Scott”]

To the cameras, Chloe airs her sentiments. “She is my best friend and I thought I could trust her.” When the gang hops on separate cabs to go home, Chloe finds an ally on Charlotte, who has an unsettled issue with Marnie. “I totally get where Chloe is coming from because Marnie did it to me in the past,” Charlotte says.

Source: MTV UK

Charlotte explains what that issue is on the second preview video, where she reveals that Marnie had sex with Gaz despite Charlotte having feelings for him. “All I can think about is Marnie sh---ing Gary. Let me at that b---h. I am going to take her head clean off,” Charlotte says. When she overhears Marnie and Chloe fighting downstairs, she decides to join in the fray. It’s not long before Marnie knocks Charlotte to the ground and drags her across the floor by pulling on Charlotte’s hair extensions. The catfight gets so bad that security had to intervene and separate the two. Charlotte screams at Marnie, “You s--g. You s--g everyone's boyfriend!”

Source: MTV UK

The last sneak peek shows the aftermath of the epic battle. Aaron pacifies Marnie, and the two end up in bed together. Meanwhile, Gaz calms down Charlotte, and he says to the cameras, “When Charlotte’s like this, nobody could calm her down but me.” Charlotte is ever so thankful with Gaz’s presence and they cuddle up together as well.

Source: MTV UK

It looks like the two ladies are back to being BFFs again. Marnie took to Twitter to hint that all is well between her and Charlotte. Charlotte responded, writing "(M)arns! Im not watching the fight I can't bare! What were we thinking man!” Charlotte also suggestively blamed Chloe, using the hashtag #chloesfault.

However, it looks like another fight is going to happen, since Gaz shared an intimate moment with Charlotte despite still being together with his ex, Lillie.

Find out what happens next on “Geordie Shore,” as the gang deal with more drama, fights and sleeping together. Click here to see more clips of the show. Watch “Geordie Shore” series 12, which airs every Tuesday, 10 p.m. on MTV.