Fans will know that Holly and Kyle dated in the past, before splitting for the first time in Greece during series eleven of Geordie Shore. They then rekindled things, but viewers saw Holly struggle to balance her relationship on the outside with living in the house last series.
When she returned for Geordie Shore's five year spinoff, she revealed that she was single again to her co-stars. But, what will she make of her ex-boyfriend walking through the door to join her?
At the end of last night's episode, MTV teased the return of Kyle.
Holly walks into the bedroom and is shocked to see Kyle sitting on the bed. He comes over to hug her and Holly tells the camera: "Kyle's back."
It all seems to get a little too much for her, though, and an emotional Holly is then seen bringing her hands to her head as she tears up. Are they happy tears? Sad tears? How will the former flames deal with being reunited?
At the end of series 12, Holly had confided in Charlotte and told her she doesn't think she can maintain her relationship with Kyle and still be involved with the show. Kyle hadn't returned that series, after previously confirming he had quit Geordie Shore.
Holly decided it had to be one or the other, and when she arrived at the start of Big Birthday Battle, she revealed she and Kyle had split once again. At the time, Holly confessed to the camera: "Me and Kyle aren't together anymore. It was a horrible time and it proper upset us, but I just don't want to get into it with this lot. I know they wouldn't understand."
Will the pair now reveal what really happened between them?
We guess we'll have to wait until next week to find out...
Geordie Shore: Big Birthday Battle continues Tuesday 31 May at 10pm on MTV.
Follow us on Twitter @RevealMag for all your celeb, fashion and beauty news!
Fancy winning some GREAT prizes? Check out Reveal Competitions here!