Which is why it's a bit confusing she's now lashed out at her again.
The tattooed reality star told Daily Star that former Geordie Shore favourite Charlotte was winning it when it comes to her career and bank balance, but then hit out at her, er, "flat arse" and "sh*t show."
Outspoken Jem said: "From a business point of view you can't do better than Charlotte. She's got her fake DVD out with her flat arse, she's on a s**t show, she's now making another s**t show.
"But she's making a lot of money which is what we want to do. She's clearly got a lot of digits in her so bank so well done but… you're a c***."
We're pretty sure Charlotte would hotly dispute the "fake DVD" claim given her 3 Minute Bum Blitz and 3 Minute Belly Blitz have both been bestsellers and she frequently flaunts her toned bod on social media.
She said on This Morning last year: "I can't believe it's fastest selling fitness DVD, I'm so proud and happy to be inspiration to people."
Confusing as just last month Jem said she wanted to put any bad feelings between them behind her.
In August, Jem said: "Maybe one day I might be able to meet her, we'll have a drink and we might be able to laugh about it. I don't know if that'll happen tomorrow or in ten years, but [the fallout] is not something that I'm going to continue. It's done now and it's in the past. Tomorrow is a new day."
Jem has hit out at Charlotte in the past: she previously accused Charlotte of hooking up with her ex-boyfriend David Hawley. Charlotte didn't respond but a rep denied that was true, saying: "Charlotte hasn't stolen anyone's boyfriend, David Hawley is just a friend from Newcastle she's known him for years."
Then Jem slept with Charlotte's ex-boyfriend Gaz Beadle in the latest series of Ex On The Beach, but denied the suggestion she'd done it to get back at Charlotte. "That wasn't why I sh*gged Gaz stop making up sh*t."
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