From Coronation Street Wiki

Mary Taylor appeared as a competition nemesis of Norris Cole, with Mary beating Norris in many. When they met up, they befriended each other. Mary lived with and cared for her invalid mother and used the competitions as a way to enjoy life. Norris initially resented Mary, as she often beat him in competitions, but when they met, they quickly became close. Mary offered Norris one of the tickets she'd won for a Cliff Richard concert. When Mary began to visit Norris more often, Norris' fellow lodger, Jed Stone, enjoyed flirting with her, but Mary only had eyes for Norris. Norris invited her to his home for Christmas.

Near the end of January 2009, Mary returned, telling Norris they'd won a motor home. Norris was pleased, but began to be concerned about how far she wanted to take their relationship. On 13th February, they said an awkward goodbye to each other in the Rovers. Mary was expecting a kiss or a hug from Norris - but got neither, leaving her devastated. In March, she returned and asked Norris if he'd like to go travelling, this left his friends Emily Bishop and Rita Sullivan unsure how they'd feel if he left. In April, Mary told Norris that her invalid mother had died but she admitted that she felt a sense of relief as she had been a very domineering woman. On 15th May, she and Norris said goodbye and she drove off in the motorhome, but not before promising to keep in touch with Norris via postcards.