We've recently seen Jamie gush over Frankie, admitting that he has been chasing her for three years, and luckily, following her split from her boyfriend, Jamie saw it as the perfect opportunity to date her.
While both have confirmed that they are dating each other, seemingly on an exclusive basis, Jamie's co-star Lucy Watson made it known that she doesn't think it is a good idea for Jamie and Jess Woodley to still be friends given their past (and very complicated) romantic history.
But, Monday's episode sees Frankie admit to the girls - Lucy, Jess and Tiffany Watson - that she doesn't trust Jamie.
Meanwhile, Jamie confides in Alex Mytton that he's "starting to feel paranoid".
And it looks like rumours swirl around Chelsea as Frankie later confronts Jamie, asking him: "When you went on a night out, did you kiss someone?"
Jamie hangs his head down as Frankie questions him, but what will he say?
Made In Chelsea - Mondays at 9pm on E4