She has to get the most nominations from the housemates to save herself, right?
That's just pure evil. To save herself she has to make the other hms want rid of her. And she can't tell them next week, presumably.
As first impressions tend to last, she's likely to be nominated for the next few weeks.
I like the twist, but I'm sorry it happened to one of the few nice people. (There you go with first impressions again)