If it is his 'habit' as you say, then you can't really question anyone's habit, right? 😊 Habits can't be shrugged off easily and they make your personality. So, essentially you don't like his personality. Fair enough. The viewers' support for a contestant stems from their like or dislike for a personality. I doubt he will be asked anything about his habit. A lot of people in that house have annoying habits - Soni constantly abusing people and cursing them, Diandra making faces and rolling eyes, Gulati's OTT behavior...etc.
And I don't remember Gautam directly asking him regarding Tanna...I thought he spoke up on his own when Tanna went rambling on about her importance. If he was double-faced as you say, he could have declined to say anything even then! He did not have to speak up and say that I nominated you, Karishma. Of course, here too he was trying to show to people that he is fair...😆...part of his strategy.
And btw, if you look back...a lot of things that he has said about the contestants are actually true! 😆
See, if a lot of things which he said about contestant are true den why dont he confront? if he can do it with sonali why not with Minisha? Why he didn't raise the issue of not giving sufficient food to Gautam.
In his first statement Arya was wrong, den Arya was right but he should say sorry, in third he claimed he made him hero, and final versio is they both have come here with strategy. So every time he has new stand.
Remember his late night session with his gang, where he named three ladies, deeps, karishma and one more. He concluded that es week bus ye hi teen hai target me. It was indication to his gang to nominate these three coz once bb asked for two names, once three, so he prepared his team to name either of these three.
N bigg boss changed whole plot by asking immunity for one fav contestant.