Holly Hagan has revealed her horror at discovering her pal's dad was responsible for vile comments made about her online.
The Geordie Shore star, 29, was speaking about her time on the MTV show on the Should I Delete That? podcast.
Talking to hosts Alex Light and Em Clarkson, Holly revealed a Facebook group had been set up to defame her after the programme aired.
She said she was told that trolling was par for the course when you appear on a national television show, but Holly pointed out that writing on a national forum also needs accountability.
"It was hard to read, there wasn't such thing as an internet troll then. People were just saying it, they didn't care," she said.
"They were making up all these rumours and saying really horrific things."
When asked whether she knew who was behind the comments the reality regular said: "I knew these people - one of them was my friend's dad."
After hearing the bombshell both hosts both exclaimed: "Oh my God, full-on adult."
Holly said others responsible for the account were people she classed as "really good friends".
"We'd go out drinking together when I was 16-19 when I got on TV," she explained.
"All of a sudden they were saying these awful things about me."
Holly said the main comment that was always made about her was "fat s**g".
The candid star recently posted a lengthy reply on Instagram after a cruel troll said she looked pregnant.
Holly, who is engaged to Jacob Blyth, insisted women should not be put under so much pressure to have children as she was 'really feeling it' and people need to 'take the pressure off women'.
She pointed out that many women were struggling with fertility issues and the heartbreaking loss of a child - so trolls need to stop and think before they post.
In her video, she said: "Sorry to keep talking about it. But I do just think it is so important.
"The last time I shared something like this, the amount of women in my DMs telling me about their IVF struggles, the miscarriages, stillbirths and how every single time someone would ask the question about babies or mention babies, their hearts would break.”
She went on to state it's "nobody else's business" when she decides to start a family and the gossip on social media needs to stop.
The Miscarriage Association (01924 200 799) miscarriageassociation.org.uk supports women affected by miscarriage, ectopic and molar pregnancies. If you’re worried about a loved one you can also call the helpline which is manned Monday to Friday, 9am-4pm, or email info@miscarriageassociation.org.uk