of revenge. Kylie gain evidence and confronts David over his scheming at Lily's christening. Filipa Jodelka of The Guardian observed that "David's family went on to pronounce him wicked and cast him out into darkness." Writers kept the paternity of Kylie's baby a secret up until birth. On-screen the child, named Lily, has a paternity test taken in which it is revealed that David is her biological father. David then boasts about the result to Nick to cause further trouble. Producer Stuart Blackburn said that he used the story to "push Kylie to the edge". It also created the opportunity for writers to revisit David's bad persona. He said the revelation damages their relationship but his team were keeping the possibility of the pair reuniting. Kylie is angry at herself and David. Blackburn explained "in her head she's a screw-up, and she'll be furious with herself for imagining she could ever have a normal life. If there's hope for Kylie and David, they must accept each other for who they really are." Prescription drug addiction In June 2014, Lane announced that she was pregnant and Kylie would be written out of the show while the actress took maternity leave. Coronation Street producer Stuart Blackburn met with Lane and devised an exit storyline. He had already planned a story for the character and Lane said her departure added more scope and improved the story. To prepare for the storyline Lane discussed her character's backstory with directors. She recalled that Kylie had previously suffered addiction which adds to the drama. Writers devised "heavy scripts" for Lane and she had to thoroughly research the issue. Lane hoped the story would raise awareness and also convey that ADHD is not a disease. After the story was broadcast, Lane has explained that Kylie blamed herself for Max's ADHD. She believes her past actions have contributed to his behavioural issues and she refuses to listen to reassurance from her family. The actress blamed Kylie's "very low self-esteem" as a mother and she thinks other residents are judging her. Kylie becomes stressed with managing Max's condition and looking after Lily. She wants to feel calm after working herself into a "tired and frustrated" state. She takes his medication thinking it will calm her down but she regrets her actions. Kylie locates Max's father Callum Logan (Sean Ward) to find answers about his ADHD. She finds it exciting