Demi, announced the news on Instagram back in May, explaining that she has had the tumour removed but now has to have more surgery to remove the rest of her thyroid.
In a candid chat on The ZeZe Mills Show, Demi was asked about her whole Love Island experience and whether any of her fellow Islanders had reached out to her following her diagnosis. She was also asked whether she thought she came out of the villa with "real friends".
"I have made friends for life," Demi explained. "The twins, Jess and Eve [Gale], they are my best friends for life, we literally do everything together now. We’re like sisters. Shaughna [Phillips], Paige [Turley], Finn [Tapp], Molly [Smith], Callum [Jones].
"It’s weird because Love Island is like a weird incestual family, you come out and all the other ex-Islanders are in your DMs. Everyone has been supportive, we all support each other in different ways."
However, Demi - who left the villa in a relationship with Luke Mabbott before splitting just months later - went on to reveal that there was a few Islanders that hadn't been in contact following her cancer diagnosis.
CHECK OUT Love Island's most dramatic love triangles
Love Island's Most Dramatic Love Triangles slider
Lucie Donlan, Tommy Fury and Molly-Mae Hague (series five)
When boxer Tommy Fury entered the villa with Curtis Pritchard, Lucie Donlan seemed to fancy him a bit. Then, when the blonde bombshell that is Molly-Mae Hague entered and took Tommy on a date, Lucie realised that she fancied him a lot. Unfortunately Molly-Mae was Tommy's preferred blonde and they're still together to this day. Seems like he made the right choice.
Tommy Fury, Lucie Donlan and Joe Garratt (series five)
Even before Molly-Mae Hague entered the villa, Lucie Donlan found herself in another love triangle, caught between Tommy Fury and Joe Garratt. After Joe chose her in the recoupling and became pretty possessive, Lucie made it clear that she was keeping her options open and that Tommy was one of those options.
Jourdan Riane, Curtis Pritchard and Amy Hart (series five)
While Amy Hart was in Casa Amor telling Molly-Mae Hague that she loved Curtis Pritchard, he was busy cracking on with bombshell Jourdan Riane back in the main villa. Although Curtis ultimately chose to stay loyal to Amy (when Jourdan rejected him), the damage was already done and the two soon went their separate ways but not before Amy uttered the now infamous line, "I was coming back here to tell you I love you."
Rebecca Gormley, Luke Trotman and Siânnise Fudge (series six)
After Rebecca Gormley swiped Luke Trotman from Siânnise Fudge in a previous recoupling, a love triangle was born with both girls fighting to keep him. Eventually Luke put the matter to rest by choosing Siânnise and they went on to be the series runners-up.
Laura Anderson, Wes Nelson and Megan Barton-Hanson (series four)
Despite being in a couple with Eyal Booker, during a game of Snog, Marry, Pie, Megan Barton Hanson decided to make a play for Wes Nelson. Wes, who was in a couple with Laura Anderson at the time, decided to snog her back and the pair eventually coupled up much to Laura's dismay. Although the pair ended up dating after the show, Laura got the last laugh after coming in second with Paul Knops whilst Megan and Wes only came in fourth.
Yewande Biala, Danny Williams and Arabella Chi (series five)
Almost immediately after asking Yewande Biala to show him more affection, Danny Williams started flirting with Arabella Chi and ultimately chose to recouple with her (the out-going model) instead of Yewande (the shy scientist). How predictable. But, as Yewande told Danny, "What goes around, comes around," as he found out when he and Arabella were booted out of the villa soon after.
Amber Gill, Michael Griffiths and Joanna Chimonides (series five)
Amber Gill and Michael Griffiths originally seemed like the perfect couple until Casa Amor struck yet again and Michael's head was turned by bombshell Joanna Chimondes. The nation's outrage at his decision was confirmed when Amber later won the series despite having only known Greg O'Shea for a few days.
Dom Lever, Jess Shears and Montana Brown (series three)
By the second day in series three, we already had our first love triangle after Jess Shears snogged Dom Lever during a challenge, despite the fact that he was coupled up with Montana Brown. Dom eventually realised that Jess was more his type leaving Montana fuming but, it seems that he made the right choice since Jess and Dom are still together to this day.
Ovie Soko, Anna Vakili and Jordan Hames (series five)
After heading to Casa Amor, Anna Vakili's head was turned by basketball player Ovie Soko, leaving her former partner Jordan Hames single. But, once back in the villa, Anna couldn't seem to make up her mind between her two love interests and flitted between the two. Eventually, after a fight with Ovie, Jordan and Anna shared a steamy smooch on the balcony and got back together.
Kaz Crossley, Josh Denzel and Georgia Steel (series four)
Georgia Steel and Josh Denzel seemed to hitting it off until Josh headed to Casa Amor and returned in a couple with Kaz Crossley. Ever "loyal" Georgia proceeded to tell Josh he'd "f--ked it" and later coupled up with Sam Bird.
Malin Andersson, Terry Walsh and Emma-Jane Woodhams (series two)
Malin Andersson and Terry Walsh were an unlikely couple but seemed to make it work. In fact, when Malin got kicked out of the villa, Terry nearly left with her but ultimately decided to stay whilst promising that he wasn't looking for love. However, as soon as Emma-Jane Woodhams arrived, his tune changed completely and the two were soon having sex on top of the covers. And who could forget that showdown that we got between Terry and Malin later. Iconic.
Molly-Mae Hague, Tommy Fury and Maura Higgins (series five)
When Maura Higgins entered the villa, she immediately set her sights on Tommy Fury despite the fact that he was already in a couple with Molly-Mae Hague. Tommy was clearly torn between the two for a while but eventually decided to stay with Molly-Mae and the rest, as they say, is history.
Sam Gowland, Chris Hughes and Olivia Attwood (series three)
After initially being paired with Sam Gowland, Olivia Attwood's head was soon turned by late-entry Chris Hughes much to Sam's dismay. Liv and Chris eventually coupled up and after MANY bumps in the road, came in third place together.
Zara McDermott, Adam Collard and Rosie Williams (series four)
Adam Collard flitted between women during his short-lived stint on Love Island from Kendall Rae Knight to Rosie Williams, then to Zara McDermott, much to Rosie's dismay. Adam was slammed on social media for his treatment of Rosie but managed to slightly redeem himself by making a go of things outside the villa with Zara, however the real-world romance was short-lived.
She said, "A few Islanders didn't reach out to me, which I didn't expect. I’m not going to name names, it will cause problems.
"It’s weird because we were so close in the villa so then coming out and then zero contact. I wish them all the best but I feel I don’t know what the reason is, I don’t know if they just want to separate from the whole Love Island hysteria. It is what it is."
Demi also revealed in the chat that she announced her cancer news on social media before informing her family.
She said, “When I first found out it could be cancerous, I was in shock and I was crying because I went on social media, and I shouldn’t have done that because I hadn’t even told my family yet. I don’t even know why, I can’t even tell you because my head was scrambled and I was like, 'Oh my god, guys!’"
WATCH ‘I'd couple up with Maura if she was bi’: Megan Barton-Hanson & Jack Fincham talk Love After Love Island
Look! More news!
Last week, Demi used an appearance on Good Morning Britain to talk about her diagnosis and how she’s trying to make the most of the good times with her friends and family before receiving more treatment. The reality star admitted that although the support has been overwhelming, she had been the target of trolls who accused her of lying about her diagnosis.
“Even with my cancer, I’ve still had nasty comments, [people saying] 'she’s lying', this and that. I just woke up and thought it’s ridiculous,” she told hosts Susanna Reid and Bill Turnbull.
We’re wishing Demi all the love in the world.