H2O: Just Add Water Season 3 Episode 10

Will is getting closer to Bella, and her secret and when he starts to bug her about Makko, Chleo and Rikki tell Bella to keep away from Will, which is hard for her because she finally feels their relationship is blossoming. But when she finds out that Will really is on the lead, she has no choice but to end it with Will. But unfortunately he wont let go that easy, and tricks her, revealing her secret. But only hers, not Chleo's and Rikki's. She tells him the story, and this doesn't go down well with Rikki, but all is calm again when Will swears to secrecy. Finally, Bella thinks they can have a REAL relationship.