The family arrived at 5 Coronation Street in January 2015 to celebrate the upcoming wedding of Beth and her fiancé Kirk Sutherland. Upon witnessing a topless Jason Grimshaw fixing a leaky radiator in the living room, the women initially mistook him for the groom-to-be and expressed stark disappointment when they were finally introduced to Kirk when came home.
When Kirk realised that he, Chesney Brown, Tyrone Dobbs and Craig Tinker all planned to attend the 80s themed wedding as The Blues Brothers, Kirk decided to dress up as Adam Ant instead and after returning to No.5 to collect his outfit, he overheard Agnes, Nancy and Arlene putting him down for his meagre job as a packer at Underworld and poked fun at the way he spoke. Following the ceremony at Weatherfield Register Office, the couple held their reception at the Rovers where Arlene openly flirted with Dev Alahan and had her card marked by his drunken partner Julie Carp. The family left soon afterwards.
Arlene and Nancy returned for Sinead's abortive wedding to Chesney in January 2018, for Bertie's christening in April 2019 and for Sinead's wedding to Daniel Osbourne in September of that year. Having discovered that Sinead's cancer had returned and was now terminal, Arlene and Nancy returned during the following month to visit Sinead on what was to be her final day. Seeing the strong bond between Sinead and her auntie Beth, Arlene broke down at her daughter's bedside and apologised for being a rubbish mum, although Sinead assured her that she had been a great mum and had enjoyed her childhood being raised by her mum, gran and aunt.
Arlene grew concerned as Sinead's condition worsened as the day went on, but Daniel assured her that this was normal and suggested the family should go to the Rovers and let Sinead rest. It was whilst the Tinkers and Barlows were there that Sinead passed away with Daniel and Bertie by her side, leaving Arlene devastated. Upon learning of Daniel's kiss with Bethany Platt, a grieving Arlene vowed revenge but she made her peace with Daniel after hearing his touching eulogy at Sinead's funeral. Arlene and Nancy returned home after Sinead's wake, where they had fondly reminisced with family and friends over the loving, caring person Sinead had been.
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