Good to hear you haven't fallen for Nadia's routine, and if you genuinely like her more than the others, then that's cool. I just don't want someone to win BB cos people feel sorry for them.
As for the smokes, I'm a smoker, and i smoke quite a lot. But my parents don't know and would kill me if they did (I'm 26 for goodness sake, but my Dad really hates smoking). But i can go a few hours (or even a weekend when I do the dutiful son bit and stay over) without bawling like a child. Nadia's a little too melodramatic about it for my liking, and i think it's all done for show. Which is one of my real dislikes in life. Rather than knuckle down and see it as a challenge worthy of rising to, she cries and becomes hysterical, hoping that someone else will sort it out for her.
But hey, if we all liked the same people, how boring would the world be... Shell would probably be Queen of that world