Marco is an old rival of Trish Minniver. Marco made a surprise appearance at Trish's dance school opening ceremony in March 2021, worrying Trish who told her daughter Maxine that Trish was her "biggest competitor". During the first interval of the disastrous opening ceremony, Trish asked for Marco to keep the event a secret. Marco revealed that - like Trish - he had been let go by their former company and offered himself for if she needed another dance teacher.
In May 2021, Marco applied for an assistant job at Trish's dance school. A reluctant Trish was convinced to interview Marco by her fiancé Fergus Collins, and Trish decided to give Marco the job. However, Marco and his brother Jacob secretly planned to steal all of Trish's contacts, which Trish kept in a diary. After Trish planned to cancel a practice due to family dramas, Marco offered to run the practice himself. Trish agreed and gave Marco her diary. Marco and Jacob then proceeded to call all of the clients and convince them to leave Trish's dance school. Maxine - working at Dee Valley Law - decided to take legal action against the pair. However, they blackmailed Trish over the controversies she caused at their former company and left Trish defeated.