in an embrace and so storms off and has sex with Lockie. Diane soon regrets what she has done and apologises to Lockie. After her affair, Lockie's wife Porsche McQueen (Twinnie Lee Moore) discovers that she had slept with Lockie whilst decorating Diane's room. The pair fight and Diane slips on wallpaper and falls out of the window. Diane regains consciousness in the hospital and Dr. Charles S'avage (Andrew Greenough) informs her that she has broken her ribs. Tegan Lomax (Jessica Ellis) injects her with morphine to take away the pain and she tells her that she had seen Tegan on a video informing Dee Dee that she is her real mother. During the night, the Gloved Hand Killer (who is Lindsey Butterfield) gains entry to Diane's ward and injects her with potassium chloride, the same chemical the assailant used to kill Rick Spencer (Victor Gardener) and Will Savage (James Atherton). Diane's heart monitor drops to 0 and the unknown assailant leaves the ward and leaves Diane for dead. Diane is rushed into resuscitation and soon makes a full recovery, after suffering a heart attack from the potassium chloride. She discovers that Tegan is Dee Dee's biological mother, and refuses to help Tegan when she needs a bone marrow transplant to cure her leukaemia when Dee Dee is identified as a match. While Diane is asleep, Tony takes Dee Dee to hospital and gives his consent to allow her bone marrow to be transplanted into Tegan, who is close to death. Tegan recovers, and Diane is furious with both Tony and Tegan for their lies. She sees a solicitor and attempts to keep custody of Dee Dee while taking Rose Lomax away from Tegan. However, Tegan discovers this on her sister's wedding day and misses the ceremony trying to persuade Diane not to go through with it. She agrees not to and Tegan continues bringing up Rose while Diane and Tony look after Dee Dee. A few months later, Diane and Tony discover that Rose has gone missing. Tony and Diane immediately set up a campaign to retrieve Rose from whoever has taken her. Whilst having a press conference to publicly broadcast the campaign, Tony panics and the press are convinced that Tony is Rose's kidnapper. The police later arrive and arrest Diane for Rose's abduction which she strongly denied doing. Scott and Tegan are later exposed as Rose's kidnappers