Celebs Go Dating's Nadia Essex is reportedly fuming over rumours about Gemma Collins.
The TOWIE star reportedly spent Valentine's Day with her ex-boyfriend, and Nadia isn't happy.
Gemma is meant to be single and looking for love on the E4 dating series.
A source told the Daily Mail newspaper: "Nadia was fuming to see Gemma with her jailbird ex over Valentine's. Especially when her client Laurence [from Celebs Go Dating] bought her flowers and a heart shaped balloon which she posted online, indicating things were going well between them."
The insider added: "This is a massive blow!
"Gemma promised a wedding at the end of this [season of Celebs Go Dating] and no-one expected it could be to her ex who she said she hated!"
Meanwhile, in tonight's episode, Nadia confronts Gemma over rumours of another of her ex-boyfriends, James Arg Argent.
In January, Gemma said she was "so in love" With Arg.
Gemma said at the National Television Awards: “We are so in love. I’ve loved Arg for many years and we’ve always had a special connection.
“We have a deep love for each other. I’m so happy I’ve even picked what our babies’ names would be.”
Alongside Gemma, other stars on the show this series include Hollywood's Jonathan Lipnicki, Olympian Jade Jones, comedian London Hughes and singer Tallia Storm.
They're joined by Made In Chelsea’s Sam Thompson and Ollie Locke, plus Love Island's 'Muggy' Mike Thalassitis.
Celebs Go Dating airs Sunday-Thursdays.
You can tune in each night at 9PM on E4.