The Love Island favourite has reportedly claimed that the series was “too hard”, although she was fully aware of the struggles she’d face.
An insider on the show spilled to The Sun Online: “Montana has walked of the show, she’s had enough.”
It is said that Channel 4 bosses fought desperately to keep her on the island, knowing that she would be a ratings winner.
“They tried to persuade her to stay but her mind was made up, once she decided the show was too tough for her she knew there was no point staying,” the source continued.
“It’s the toughest reality show out there and she was up against some incredibly difficult challenges, and she eventually decided she just couldn’t hack it, it was too hard for her, so she walked.”
Jo Wood, most famous for marrying Rolling Stones legend Ronnie Wood, has also been linked to the show’s third series.
Celebrity Island sees Bear Grylls drop a bunch of celebrities on an uninhabited island and leaving them to fend for themselves.
The stars are also expected to set up camp, hunt for their own food, and even brave the worst of the weather.
Montana is not the first person to walk from the extreme TV show.
The first series saw JLS singer Aston Merrygold and rugby player Thom Evans quit whilst a whopping four stars – swimmer Sharron Davies, Breaking Bad star RJ Mitte, Rizzle Kicks member Jordan Stephens, and comedian Mark Watson – depart from the island early.