Thanks for such great analysis. Especially I agree on abhinav's part. Elegantly put.
It isn't that Rubina is changing his game. He is true to his real self.
But yeah like it is visible that he has some kind of bonding with Rahul and tbh even Nikki ( the girl blushes at his antics) but as Rubina is straightforward and doesn't hesitate from showing her dislike towards them( which is completely right, jaise ko taisa) this bond may never become anything meaningful from the perspective of the game.I m not saying that Abhinav should be friends with them, definitely not after that Nalla incident. But they could have shared a cordial relationship or even strategised together if Rubina wasn't in the house.
But keeping this aside Rubina and Abhinav are doing great as a couple and I love the graceful and warm connection they share.