Dotty says she hates them both and wishes that Nick had killed Dot. Dot smacks Dotty across the legs and Dotty manipulates her into letting her stay off school. After Dotty calls the police, Dot is arrested for assault but is released without charge and Dotty apologises. Dot receives a visit from Dotty's mother Sandy. Dot assumes she is from Social Services, but Sandy says she is looking for her daughter Kirsty. Dot says she knows nobody of that name, but when she sees a photo she realises that it is Dotty. Dot hides Sandy's visit from Dotty, but later talks to Sandy about her daughter and her past. She also asks Dotty about the friends and family she used to have, but Dotty says Dot is the only family she needs. However, she soon admits that she misses her mother, and Dot reveals that she is alive and Nick had lied to her. Dotty says she wants to see her mother, so Dot calls her. When Sandy arrives, Dotty is delighted and Dot tells Dotty she should go with Sandy. They say an emotional goodbye, and Dot says she can visit at any time. In May 2012, Dot and her sister Rose Cotton (Polly Perkins) go to live with Dotty and Sandy. In January 2013, it is revealed that Dotty and Sandy are in Florida. In March 2014, Dot reveals Dotty and Sandy cannot attend Nick's funeral, because Dotty has a cold. Dot visits Dotty and Sandy at their new home near the Mumbles in Swansea in October 2017. In October 2019, Dot returns to Walford after visiting family, and brings Dotty back with her, as Dotty was bored with her life in Wales. She explains that she wants to study in London, and attends the leaving party of Bex Fowler (Jasmine Armfield), and flirts with Tiffany's new boyfriend, Keegan Baker (Zack Morris). Dotty gives Bex the details of a drug dealer, who supplies Bex with poisoned drugs. While on a boat party, the boat crashes and Bex falls unconscious, being taken into hospital while Dotty looks on. Dennis Rickman (Bleu Landau), Dotty's friend and colleague, dies on the boat, and she later discovers a voicemail that reveals Ian Beale (Adam Woodyatt) locked him in. Dotty then blackmails Ian, asking for The Arches, otherwise she will expose him.