New girl Natalee Harris causes shock and surprise when she reveals to her first greeter Aron that her ex-boyfriend is none other than Darren Chidgey.
Aron asks: "You're not somebody's ex-girlfriend or something are you? You're not Chidgey's ex-girlfriend are you?"
Chidgey finally spots his former partner after the news quickly spreads around the house.
He exclaims: "You're kidding!"
Natalee's arrival also receives a negative reaction from Jenna, who had been getting close with Chidgey.
Jenna says: "She's being really nasty to him. I wouldn't be like that to him…it's not fair on him."
However, Natalee says of her arrival: "I think I might have to go with Darren [Chidgey] just to get on Jenna's nerves."
Natalee is later thrown a house party for her birthday, which includes a heated Truth or Dare game. Chidgey confronts his ex about not being honest with her feelings for him.
He tells her: "Do yourself a favour, go home."
Upset, Natalee tells Carley: "I don't know how I feel [about Chidgey], I genuinely don't know how I feel."