Christina and Caroline witness a murder and are placed under a witness protection programme, which sees them move into
22 Ramsay Street. Christina thinks she is pregnant and Paul is thrilled by the news and looks forward to being a father again. However, Christina is old by a doctor that she was not pregnant and, feeling guilty about getting Paul's hopes up, she decides not to tell him and tries to sleep with Paul at every moment to get pregnant. She eventually falls pregnant and when she went into labour, Paul drives her to the hospital, but the car runs out of petrol and stopped. Paul eventually manages to persuade an
ice cream van driver to take them to the hospital. Christina then gives birth to a son,
Andrew Robinson (Shannon Holmes). Following Paul's nervous breakdown following financial problems, he leaves Christina and Andrew for several weeks. When Paul returns, he brings his 8-year-old daughter
Amy Williams (Sheridan Compagnino) with him much to Christina's surprise. Christina and Amy struggle to get along but make up just before Amy is returned to her mother,
Nina Williams (Leigh Morgan). When Caroline abruptly leaves Erisnborough, Christina is shocked and later over hears Paul and his grandmother
Helen Daniels (
Anne Haddy) talking about Paul and Caroline's affair. Christina throws Paul out of their house and flies to see her sister, where they eventually make up and Christina returns to Erinsborough, where she files for divorce and full custody of Andrew, but Paul convinces Christina that he loves her and Christina gives him a second chance. They renew their vows in a ceremony at No. 22 and leave Ramsay Street for a new start running a hotel in Hawaii. They later move to Brazil. Andrew begins acting up and defying Paul's wife
Rebecca Napier (
Jane Hall), who calls Christina and asks if Andrew can return to Sydney. However, Christina tells Rebecca that she does not want her son to come home. Years later, Paul finds Christina and Caroline at a resort in Queensland, where he and his fiancée
Terese Willis (
Rebekah Elmaloglou) have eloped to. Paul is convinced the universe is giving him a sign not to marry Terese, after his other ex-wives turned up in Erinsborough. Paul soon learns from Caroline that the wives are part of a plot orchestrated by his daughter
Elle Robinson (
Pippa Black). Caroline apologises on her sister's behalf and they both make amends with each other, as well as Paul and Terese. Christina and Caroline act as witnesses for the wedding and they decide to spend some time together before returning to their respective homes. ==Reception==