She has definitely been bitter about Jasleen because Jasleen is the only one who is not scared of Surbhi, Jalseen gives her back all of the time as Surbhi cannot scare her with her aggressive behavior.
Surbhi also made nasty comments about Saba and Somi in her first week. She abused them so badly, why did Salman not say anything to her.
Also, Surbhi made HOMPHOBIC COMNENTS about Rohit by making fun of his skin colour, making remarks about him liking people of the same gender, making fun of him looking different than other men.
Surbhi is always given the befit of doubt that, she is just like that, that does not mean she is allowed to disrespect other people.
Surbhi plays victim card that,people are judgmental of her, but she has been the most JUDGMENTAL about other people like Rohit, Khan Sisters in the beginning, Dipika, and Jasleen.
Surbhi is never bashed for the reasons other people are like hitting Srishty in one of the tasks, I don't like Srishty, but Surbhi was wrong there.
Also, Surbhi was completely protected in the smoking incident because they want to keep her inside the house.