Declan (Jason Merrells) is about to return home from honeymoon and face more rows with Megan, who is determined to teach him a lesson for conning her.
However, speaking on This Morning today (November 6), Faye confirmed that Megan and her son Robbie will be forced to leave the village temporarily as Declan manages to maintain the upper hand.
Pictured: Gaynor Faye on This Morning.
Faye explained: "She's stolen the keys and is squatting currently at Mulberry Cottage with Robbie, and of course Declan and Katie come back tonight from their honeymoon and discover that Megan hasn't gone back down south. She's still there meddling."
She continued: "It's quite sad, really, what happens. There is a love there, but there's sibling rivalry from way, way, way back - right from when they were kids.
"Megan's always trying to get one up on Declan, but he always manages to pull out a trump card - which he does again! He sends Megan off to London with her tail between her legs, and Robbie on a lead!"
Asked whether Megan will eventually return from London, Faye replied: "I think that would be telling. [But] I have been filming recently in Yorkshire!"
Emmerdale airs weeknights on ITV1.