Alfie tries to start a football team for the pub, and Kat takes it over. She flirts in order to get people to sign up, and continues flirting at a party, with Derek, Michael, Ray Dixon (Chucky Venn), Jack Branning (Scott Maslen) and Max Branning (Jake Wood), sharing a close moment with each of them. While in the kitchen alone, an unseen man enters and he and Kat have a sexual encounter. She feels guilty the next day and attempts to neglect calls and texts from the mystery man, who has bought her a new phone. Kat eventually responds and talks with the man to tell him to leave her alone, but changes her mind and they begin a frequent affair, and he supplies them with a flat to use. Kat endeavours several times to end it, but she continuously succumbs. He falls in love with her, with Kat reciprocating, and when he sends Kat flowers, Alfie becomes suspicious. Kat lies they are from Charlie, but Alfie does not believe her and asks her to be totally honest, to which Kat reveals her three-month affair, telling him he does not know the other man. Alfie is furious and throws her out. After a heart-to-heart with Michael, Kat returns to The Queen Vic to ask for Alfie's forgiveness and suggests going away for a while.