 After Buster's son Mick Carter (Danny Dyer) discovers the affair without knowing Kathy's identity, he urges Buster to tell Shirley or leave Walford for good.Buster asks Kathy to leave Walford with him, but she ultimately decides to remain in Walford with her family, leaving him heartbroken again and he leaves alone.Kathy accompanies Pam Coker (Lin Blakley) when she visits Diane Atmore (Hazel Ellerby) who is the mother of Simon Atmore (Tom Palmer), one of Paul's killers.