The girl, now a 20-year-old student, told The Mirror under anonymity: "I think it was just a rookie error for him, he was very immature then".
The former Coronation Street star and his TOWIE girlfriend Lucy are coincidentally already in Australia, sharing photos to social media. I've grown an awesome following so now, through that social media has led to being my job, my entire job is this online and everything that comes with it.
Since returning from the jungle, he tweeted: "You all deserve answers as to what's been going on in the press recently, I have filmed a video to apologise for what I've said in the past and to thank you all for the incredible support".
He continues: "I was young, I was stupid, I was carless and I wasn't thinking".
"I've been really stupid in the past", he admitted. "This was back when I'd just left school and I didn't know what I was doing".
"I was just stupid".
Things are said to be so serious that he spoke to her on the phone the night before he went into the jungle. It's hard. Growing up online is hard.
He stressed that he'd done a lot of growing up since he was 16 and said people shouldn't put anything online they wouldn't say to their mum or put on a t-shirt.
Speaking about missing the rest of I'm A Celeb, Jack said: "I'm just so gutted and embarrassed that all of this has happened now".
"One of the reasons I went on the show was because I saw it as a huge achievement to see off the year and I feel like I completely messed it up".
But who knows, maybe she'll surprise us and pop up in the I'm A Celebrity 2017 jungle to finish what she started three years ago!
They'd simply declared: "Due to circumstances outside camp, Jack has had to withdraw from the show", while Jack's agent had stated: "Since it is only fair that everyone should be aware of any allegations made against them and should also have the right to defend themselves, it was agreed it would be better to bring him out".
Jack lasted just 72 hours in the ITV reality show before we revealed this week that bosses axed him.