It's a common observation that even in real life woman who are cautious about their reputation and want to keep men at a safe distance call them bro and bhai and this is what Shweta do.. she calls Sameer and Ashmit Bro.. and Khali Bahi..
Otherwise unlike Sara and Veena she never showed EXTRA care to any of them by cooking special meals and giving massage.. she is always neutral and do argument whenever she is not agreed with any of them.. just talking nicely and giving respect is something that can be expected from any cultured person.. but I never saw her doing something that seems like flattering or buttering to not get nominated.. lame accusation by Dolly..