I don't know. I struggle with the idea that someone worried that her boyfriend might want to turn her into a slave girl would be happily dressing up in a slave girl outfit for him. I don't think the addiction theory has been killed off just yet. But maybe it's that after her experience at the hands of her own brother, she's just not inclined to trust anyone. Or perhaps she's specifically worried about Vik and that he might still be alive.
Yeah, it seems strange because even after being dosed with the antidote she seemed to enthusiastically participate in sex romps with Q, instead of reacting with horror like some of the other subjects did... very strange.