Having recovered from his operation, Alfie and Kat return to Spain to run a bar. Mo returns in March 2018 and reveals that Kat and Alfie had an argument and that he fled with the children shortly afterwards and no one knows where he is. On her return to Walford shortly afterwards, Kat reveals that Alfie is in Spain with their children, running a different bar with a Russian partner, Dimitri, after their old bar lost a fortune. She insists that the two are taking a break from their marriage. Two months later, Hayley Slater (Katie Jarvis) visits Alfie, who is staying in London, and it is revealed that Alfie threw Kat out after Tommy accidentally caused severe burns to Ernie while she was in bed with Dimitri. Hayley reveals that she is pregnant and that Alfie is the father following a drunken one-night stand in Spain. Alfie tries to persuade Hayley to terminate the pregnancy and returns to Spain, but Hayley decides to keep the baby.