Jason rekindles his relationship with Maria Connor (Samia Ghadie) however she later shares a kiss with her gay best friend Marcus Dent (Charlie Condou), who is actually dating Aiden. They later fail to resist temptation and sleep together. The pair dump their boyfriends, Aiden and Jason. Realising they are in love, they agree to give their relationship a go. In December 2012, Jason starts a relationship with Stella Price, after repairing a water leak in the Rovers, yet she rekindles her relationship with Karl Munro (John Michie). However, Jason is convinced that Karl is responsible for starting the fire at the Rovers Return which killed Sunita Alahan. He tells Sunita's husband Dev Alahan and he initially ignores him. But, as clues build up, he begins to believe him. Just after Karl and Stella's wedding takes place, Dev locks himself in the newly built Rovers Return and he confesses to killing Dev's wife Sunita. Meanwhile, Jason is at the police station reporting Karl for murder. In the pub, Dev begins to punch Karl and he retaliates by smashing him around the head with a bottle. Stella enters through the back of the pub and finds Dev on the floor surrounded by shattered glass. Karl refuses to let her call an ambulance and locks her in the basement. The police arrive at the pub and Karl is arrested. Dev recovers quickly. Impressed by his concern for her mother Stella, Eva Price (Catherine Tyldesley) shares a kiss with Jason in September 2013, and they later begin a serious relationship.