No doubt in that. If you remember they've been doing this from the beginning.
First, they made Jasmine their puppet and when things changed between Rubina and Jas Abhinav still kept Jas aside to save him from nominations even when Jas bitched about Rubina in front of Abhinav. Why didn't patidev didn't take any action at the time??
Second Nishant, who was voted by Abhinav himself.
Third They tired to lure Kavita when she fought with Ejaz but again that didn't work after 'friend with Benefit Fiasco'.
Fourth, Eijaz in village task but even that didn't work.
Fifth, herself is giving footage to Abhinav so the couple is fully taking advantage of it, Rakhi saved Abhinav.
Now Nikki, Rubina was one who talked about Nikki's Parvarish and all (though Nikki is also dholki) now they have become sisters. The couple won't take minute to throw Nikki under the bus if needed.