 During <unk> week Donna meets Andrew Robinson and has sex with him . Andrew turns up in Erinsborough and he and Donna eventually continue their affair . One of their trysts is accidentally recorded and Scott Griffin ( Eamonn George ) finds it and shows at Charlie 's . Ringo is devastated and leaves for Sydney . Donna begins university and during her second lecture , Saffron turns up as a guest speaker . Saffron turns Donna 's classmates against her , but Donna stands up to her . While going through her mother 's diary , Donna discovers that there are two men , Nick Nixon and Nicholas McKay , who could be her biological father . She contacts them both and she gets a job in Nick Nixon 's restaurant to see what he is like and she eventually tells him that she might be his daughter . They take a DNA test , which confirms that they are related . Donna tries to be nice to Ringo 's new girlfriend , Naomi ( Kate Bell ) , but she struggles . Ringo breaks up with Naomi and Donna discovers that Naomi has been following her . Naomi 's trashes Donna 's university project and steals her own medical file from the hospital . Donna is arrested , but Declan Napier ( Erin Mullally ) and Ringo find the file at Naomi 's house and Donna is released . 
