Kirsty is a florist and the ex-girlfriend of Hugh. Kirsty broke up with Hugh because she thought that he was too ordinary.
Annie dated Hugh after he broke up with Kirsty, but shortly after it Annie became invisible to Hugh. She knows that Hugh still likes his ex-girlfriend Kirsty, so she tries to set him up with Kirsty. As Annie doesn't want to do that alone, she asks George Sands for help. Kirsty really likes George, but at the end she meets up with Hugh again.