Love Island viewers will see drama unfold on Thursday night, as a new teaser revealed Jess will storm off in tears after an apparent row with pal Catherine.
While it's not clear what happens, viewers think they've cracked the case after some awkward scenes in the villa.
It's not known for sure if Catherine and Jess have a row or if Catherine is relaying information, but either way Jess is not happy.
She ends up bursting into tears and shutting down the conversation, before storming out of the villa garden.
All that is known is that Catherine speaks to Jess about her "whispering" and it seems something Jess has said has upset one or more of the Islanders.
Jess suddenly starts crying and refuses to have the conversation, before she storms off.
Viewers think they've worked out what the row could be about, or who.
Jess has been making comments about Molly for days, but fans aren't sure if Catherine would get involved if it was Molly.
Catherine is much closer to Ella, with the pair and Jess forming a bond in the villa.
Now, fans think Jess will be caught whispering about someone, possibly Ella, and Catherine will call her out.
Perhaps it is about Molly, and Catherine isn't liking what she's seeing with the constant jibes behind her back - while both Molly and Ella are missing from the scene.
Catherine appears to tell Jess and someone else to cut out the whispers, but Jess smirks and says: "No one is whispering."
As Catherine says: "You was whispering," Jess suddenly shouts: "I don't wanna have this conversation no more. Sorry, cos it's winding me up."
Charlotte, Catherine and Whitney all appear to be in the scene as Jess then storms off.
Taking to Twitter with their theories on the row, viewers speculated what it was about as one said: "I feel like Catherine and Jess argument has something to do with Ella but we will see."
Another agreed: "who would catherine call jess out for other than ella though?"
A third fan wrote: "also what do Catherine and Jess have to argue about? unless Jess is chatting about the Ella/Ty situation."
Another fan wrote: "One thing about Catherine she gonna stick up for her girls no matter what. What it hink happened is that Jess said something about Ella and Catherine heard it & called her out!"
Love Island airs every night at 9pm on ITV2 and ITVX.
