LOL, dude she is playing a clever game. She has realized that Praneet is the strongest contender alongside Gautam followed closely by Preetam. She is thinking that if these 3 get chucked out early on itself, then her chances improve greatly because everyone else is so-so. She can't get rid of Gautam, even Karishma has realized this now so now her aim is Praneet and Preetam because there is a realistic chance that if these two are pitted against strong contestants like Gautam, Karishma in an eviction then they can get evicted. Hence, she has been going after these 2 on a consistent basis.