Some of the character's more prominent storylines have included: his turbulent relationship withand later marriage toKat Slater; the dementia and death of his grandmother, Nana (Hilda Braid); believing that Kat's son Tommy had died of cot death, whereas in truth their neighbour Ronnie Mitchell (Samantha Womack) had switched him with her own deceased child; discovering that Kat had been sleeping with his best-friend Derek Branning (Jamie Foreman); beginning a relationship with Ronnie's sister Roxy (Rita Simons) and marrying her, but reuniting with Kat moments after the wedding; Kat's pregnancy with twinsBert and Ernie, destroying their home by committing arson to get the insurance money; winning the lottery; being diagnosed with a brain tumour; and reuniting with Kat until they split again when she discovers that he is the father of Cherry Slater.