So, what happened?!
Well, we'll see tonight that Kate is feeling angry about Courtney's behaviour towards her on Twitter, and decides to spill all to Georgia Kousoulou and Chloe Lewis when they meet up to go swimming.
What has Courtney done? Well, the preview doesn't give much away, and a quick scour of the girls' social media accounts doesn't suggest anything too obvious there. The last interaction between them was 20 March, when Kate tweeted: "A bit behind here ... S**t myself @Chloemeadows @courtneyMgreen .. Use sure?"
Chloe replied: "Just sticking up for my friend, that's all...." Courtney added: "You're way behind.
We shall await tonight's episode to find out what is going on.
It's not the first time Twitter has caused drama in Essex. Georgia Kousoulou was in tears earlier this series because of comments made about Courtney and Chloe Meadows on social media.
Meanwhile, Courtney is having a better time than Kate, as she's on a cinema date with Chris Clark in tonight's episode, unaware that Kate is venting to Georgia and Chloe L about her frustrations.
The drama continues in The Only Way Is Essex on Sunday 28th March at 10pm on ITVBe
Ten reasons why we want to be on TOWIE!