lover and convinces Chrissie to follow Robert with her to the hotel to catch him in the act. When Chrissie confronts Robert, he tells her that he had been arranging a romantic night away for the two of them. Chrissie is furious with Katie and warns her to stay away from them. Andy also asks Katie to give up her vendetta against Robert, but Robert later visits Katie and threatens her, warning her that she will "get burnt if she plays with fire". When Katie threatens to befriend Chrissie again and get close to him so she can find out what he is up to, an enraged Robert torches the caravan Andy and Katie are staying in whilst awaiting the move to Wylie's. Katie accuses Robert of starting the fire but he laughs off her concerns and she is forced to back down. Andy grows despairing of Katie and considers ending their marriage and she begs him for another chance, and apologizes to Robert for her behavior. Despite this Robert convinces Chrissie to back out of the deal with Wylie's Farm and Robert takes pleasure in informing Katie of this. When Katie attempts to talk to Chas about her suspicions and frustrations over Robert, Chas is skeptical and she and Katie fall out when Katie makes a remark about Gennie. Chas' son Aaron Livesy (Danny Miller) then tells Katie that he knows Robert is having an affair and tells her to come to Wylie's Farm the next day, the day of Robert and Chrissie's wedding. When Andy discovers that Robert and Chrissie have pulled out of the farm deal, he furiously confronts Katie and tells her not to attend the wedding and considers moving out and ending their marriage. Katie goes for a ride on her horse and receives a text message from Aaron telling her to go to Wylie's Farm. Katie arrives to discover Robert and Aaron kissing and is shocked to discover that Aaron is the person Robert has been having an affair with. Katie takes a picture of them on her mobile phone. Aaron leaves and Katie confronts Robert, happy to have the upper hand on him. He pleads with her not to tell Chrissie and offers to give her and Andy the farm again for free but she refuses his offer and makes to leave, telling him that she intends to tell Chrissie about him and