The trouble for Kim starts when she secretly confesses to Jamie Tate that she is jealous of the fact Graham has got a secret woman.
But while Kim is struggling to work out who has put a smile on Graham's face, Andrea Tate is secretly pleased that Graham's determination to break free from Kim's tight grasp might mean he is out of the picture soon.
When Jamie finally works out that Rhona Goskirk is the one Graham is seeing, he is adamant that he should tell Kim the truth.
But Andrea is terrified that the confession will rock the boat with Graham and she begs him to keep quiet.
However, the news is about to be revealed by itself when the village prepares for a Halloween party at the pub.
When Andrea tells Graham that they need to talk, the pair meet in the Woolpack beer garden for a secret chat.
But while they are arguing over Millie, Kim sees them together from afar and becomes convinced that Andrea is Graham's secret woman.
But of course Kim has put two and two together and got five, and soon it is revealed that Rhona's the one Graham is seeing.
Kim is devastated when Graham coldly tells her that she'd better get used to seeing him with Rhona and later a furious Jamie lectures Graham about his lack of loyalty to Kim.
But Graham has a far more dangerous card up his sleeve, and retaliates by revealing it was Jamie who delivered the evidence that put Kim behind bars.
Kim is totally devastated by her son's betrayal and Jamie fights to talk her round.
But can she ever forgive him for double crossing her?
Emmerdale airs weeknights at 7pm on ITV, with an extra episode at 8pm on Thursdays.
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