Why target Qazi and Rooprekha?

I think Rex and Arpitha are showing their true colors. Initially, they behaved as if they were the best of friends and now as the show is nearing finale' they are showing their true intentions. Rex never digests Qazi's popularity and Arpitha can never see Rooprekha winning the galas. Instead of doing some reality check I think Arpitha always targets Qazi and Rooprekha and even challenges the choices of Janata and the judges....as if they don't see or know anything and have saved them just like that. Arpitha must start working on her voice than just keep bitching about RR, ditto with Rex. Arpitha must accept the fact that RR has a better and a more powerful voice than her's and Rex must also accept that Qazi's popularity is soaring high and Rez better improve his performance than slinging mud on these two poor chaps who have been nothing but honest through out the show.