It is revealed in Series 5 that Debbie has been in a secret relationship with police officer Tom O'Leary (Michael Legge), despite the fact that she is only 15 years old. Debbie and Tom break up at the beginning of series 6 during her 16th birthday party when she realises that Tom is too old for her and that he wants much more from the relationship. Tom begins to stalk her, although he tells workmate Carrie that Debbie has been stalking him.