After realising how much it bothered her co-star and on/off flame Aaron Chalmers.
Marnie had quit Geordie Shore last summer, after her ex-fiancé Ricky Rayment proposed to her out in Greece. She chose to focus on her relationship instead and fans saw the show's twelfth series kick off without her.
However, things didn't work out for her and Ricky, and Marnie later confirmed she was returning to Geordie Shore. And when she finally did return, the smile on Aaron's face proved he was more than chuffed to see her.
As you can guess, they wasted no time in picking up from where they left off and Aaron had hoped he and Marnie could make a go of their romance, after it continued while filming for Geordie Shore's five year special earlier this year.
However, he soon branded their relationship "f**king dead in the water", after Marnie was later spotted kissing Jordan.
Marnie had headed out for Valentine's Day with the Ex On The Beach star, unaware that Aaron had made plans for the pair. He later revealed: "I planned a big surprise and everything for Valentine's Day. She went on a date with someone else."
Since then, Marnie has clarified *those* dating rumours surrounding herself and Jordan and claimed he is "like a brother" to her not a boyfriend.
She has now said that she "felt guilty" for locking lips with him, after seeing how Aaron reacted.
Speaking to Star magazine, Marnie revealed: "I felt really guilty [about kissing Jordan], but I didn't think he'd be that bothered. I've never seen that side to him. I was shocked."
"He wouldn't speak to me for about three weeks," she said. "We normally talk every day. It was so hard."
The 23-year-old did reveal, though, that she and Aaron can't stay mad at each other for long and they recently had fans speculating whether their romance is now back on.
Aaron had gushed that Marnie is "the only missus for him" on Geordie Shore on Twitter and told fans he would get his co-star's name tattooed onto him when "they marry."
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