Viewers saw Chloe Meadows take a swipe at Kate's style, saying: "Dressed like you're going to a wedding. F**king hell. On Brentwood High Street."
She didn't realise Kate had overheard.
Many of Kate's co-stars and friends defended her during the show, saying she was "beautifully dressed" and not to worry about the comment.
Really I thought she dresses like a lady.— Debbie Towie (@debbietowie) March 30, 2016
Chloe later apologised for the remark, saying it was just the stress of all the drama in Essex.
"I said that because I'm getting so annoyed with so much agg all the time. It's really getting to me. I know it's harsh that's why I'm apologising," said Chloe, adding it was a "heat of the moment" comment fuelled because she wanted to sort all the agg there and then, but Kate had walked away.
"I apologise 100 per cent. I just wanted things sorted and you were walking away."
TOWIE continues Sunday at 10pm on ITVBe.
Ten reasons why we want to be on TOWIE!