Australian viewers have already seen Rani become suspicious after spotting her mother in an embrace with Paul, leaving Priya scrambling to come up with an innocent explanation for what she saw.
Rani (Coco-Jacinta Cherian) continues to fear that she cannot trust Priya (Menik Gooneratne) when one of her earrings is mysteriously found in a Lassiters hotel room in an upcoming episode.
Deciding that she can no longer accept her mum's denials on face value, Rani later snatches Paul's phone to search for evidence - and her world is rocked when she discovers incriminating text messages sent between him and Priya, who have since called off their fling.
TV Week reports that an upset Rani later heads off to a party across town with boyfriend Harley Canning, but whether she will reveal Priya's affair upon her return remains to be seen.
Neighbours airs these scenes next week on Eleven in Australia, and in January on Channel 5 in the UK.