Love Island Australia’s Erin was furious in Saturday's fiery episode as her lover Eden frolicked in the pool with Millie despite having just spent the night in the hideaway with Erin.
Erin burst into tears as she watched Eden picking her nemesis Millie up and throwing her in the pool, and when he tried to do the same with Erin she refused to let him.
Later on, Cassidy pulled Erin aside to inform her that she had just seen Eden in the shower with Millie in their bathing suits, and Erin saw red.
"I just walked upstairs and Millie is in the shower, with bathers and Eden was up there. And I know you would tell me, so I’m telling you," warned Cassidy.
Speaking in the Beach Hut, Erin sobbed: “I’m really worried to trust someone.
"And I am fully trusting Eden, so I’m really scared that he’s going to break the trust," she said, adding that she saw similar "red flags" with her ex boyfriend.
She fumed over Eden's behaviour, admitting she felt disrespected and then gave him the silent treatment, but denied to his face that she was upset.
Eden demanded that Erin tell him what was wrong, and she finally explained that she was furious about his flirty antics with Millie, who she had serious "beef" with.
He denied touching Millie and said it was Tayla he was picking up, but Erin was not having any of it.
"I don't mean to do whatever you're saying," said Eden.
"I really do care about you. I like you so much you have no idea, if you left the show I would want to go home," he claimed."
Erin softened as she revealed she didn't know that Eden liked her that much, and he admitted in the Beach Hut that he did not want her to be upset.
In the Beach Hut, Erin said she was confused as she had been ready for a "massive argument", but Eden won her over and convinced her he was genuine.
* Love Island Australia continues at 9pm on ITV2
