Surbhi knew how Sreesanth did not wanted to help Dipika and did not complete his kilometres.
She knew how Romil and Deepak are betraying her by not giving her enough carrots which is why she supported Dipika and was on the treadmill for quite a long time despite her hating Dipika. Surbhi also kept her integrity by informing Dipika how the housemates her stealing her carrots, Surbhi did not keep Dipika in the dark and kept her aware of what is happening.
Surbhi did not follow the herd mentality and did realize how Deepak will always prefer Romil over her and even Romil is revealing his true colours by trying to remove Surbhi from his boys group.