Hasn't Surbhi aired her concerns as well? To KV, she was like, "I don't know how to react to this guy". Even inside the house, KV who was "enemies" with Sree essentially is now again friends.
Look at the forum also, till yesterday, most hated Sree and now ever since we knew of his jail past, everyone's a bit kinder.
So it's not Surbhi who is flipping. Everyone is confused.
And every time Surbhi got mad at him, it was for Deepak and Romil. Now that Deepak went back, she has stopped. And when he swore at Deepak again, she got mad again. So it's more what Sree does to her friends. She even said she feels stupid when she shouts at Sree for Romil/Deepak and then they go talk to him after.
She has always had a soft side, haven't we seen her with HC? She's pretty affectionate.
She is just confused but I think she is more restrained now. She didn't even scream at Megha and told Deepak/Romil to stop. I mean that has to be some achievement for her. She's less concerned with the pair now which is good.