 Fatboy and Poppy 's relationship turns sour when Poppy suggests that they should buy a house together . Fatboy eventually pulls himself together and tells her that they haven 't been together long enough yet . She then ends their relationship and Fatboy moves in with Tamwar . Fatboy later suggests to Poppy that they rent a flat to begin with and take it from there . The couple reunite with a romantic kiss . However , when Denise feels uncomfortable with the way her new fiancée Ian Beale ( Adam Woodyatt ) is currently treating her , she gets comfort from Fatboy and the pair are unable to resist each other . When Poppy finds out that they shared a kiss , they realise that they are not right for each other and Poppy returns to go and live with her mum . Upset by the couple 's break @-@ up , Fatboy gently tells Dot that her and Poppy are still friends . He supports Dot when he learns that her son Nick Cotton ( John Altman ) dies and is surprised by the arrival of her estranged grandson , Charlie Cotton ( Declan Bennett ) . When Fatboy is told that he is no longer needed at The Queen Vic , he accepts a job at Ian 's restaurant as a waiter . Denise feels awkward and confesses the truth to Ian , but doesn 't mention Fatboy 's name . Fatboy spends time away from Walford caring for his uncle when he falls ill , and , on his return , Dot suggests that he finds a new place to live , due to Charlie moving in with her and her only being allowed one lodger by council regulations . When Charlie 's son is born , Fatboy is unsuccessful in persuading Charlie to take the baby home . He follows Charlie home and discovers that Nick is alive . When Charlie later moves out , Fatboy moves back in with Dot . On Ladies ' Night at the Vic , Fatboy consoles Denise when their kiss during the engagement party is revealed . Tina visits Sonia Fowler ( Natalie Cassidy ) to find Fatboy with her . 
