Cameron: You don't belong here. John isn't right for you and you're not right for him. He can't see that.
Riley: Stop … please. You're freaking me out.
Cameron: You're unreliable. I don't know what you do.
Riley: I'm just John's girlfriend. That's it.
Cameron: You can't be John's girlfriend. You're a threat. You can't stay here any more. But I can't let you leave.
Riley: You're John's sister.
Cameron: What am I going to do with you?