Montana Brown feels "really bad" for Roxanne Pallett, and has hit out at people for trolling her.
The former "Love Island" star admits the ex-"Emmerdale" actress was "completely in the wrong" after she falsely accused Ryan Thomas of punching her on "Celebrity Big Brother" - which resulted in her leaving the show and admitting she "got it wrong" - but Montana says Roxanne was "genuine" during their time on "Celebrity Island with Bear Grylls".
She told The Sun Online: "I don't know if you can tell from three days, but from what I saw from her she seemed like a genuine person.
"To be honest after this whole thing has blown up about "Big Brother" - I get that she is completely in the wrong and it's really bad what she did - but I also don't think it is OK for people to troll her the way that they are, because that is the kind of stuff that makes people want to take their own life. It's not nice.
"I was really shocked by "Big Brother". To be honest I did feel really bad for her, I felt really bad for Ryan as well because I know Lucy quite well, but I think she obviously needs help so I think people need to support her in getting that help and hopefully she can get better."
While Montana admits Roxanne, 35, was "a bit of a drama queen" on reality show "Celebrity Island", the 23-year-old star was "sad to her go" from the programme when she made an early exit.
Montana - who also quit the show before the end - added: "She wasn't on the island for that long, but to be honest I thought she was really quite funny, kind of witty and she was a bit of a drama queen at times.
"Don't get me wrong but her energy levels were always very high and she brought a lot of energy to the camp so we were really sad to see her go, because she was positive."
However, the pair's fellow "Celebrity Island" star Jo Wood recently said Roxanne was "always playing up to the camera" on the programme.
She said: "Luckily, she was only there for four days. She was always playing up to the camera."