Apparently, after Monday's task Gautam emerged as a Hero in front of the housemates and Karishma as a Vamp. Her bestie Diandra aka Di also confronted Karish and opposed her for the wrong decision.
Her demand for make up over Sushant's punishment seemed illogical to all the housemates. In fact the entire house was disappointed in Karishma and told her that she was selfish and self centered.
Therefore, may be Karishma realized her mistake and regretted her decision or it can be, when she found out everything is going against her she shed some crocodile tears to gain sympathy.
If I may remind you, this is not the first time Karishma has used her tears as a weapon to manipulate others. Not long a go Karishma during 'Hero vs Villian' task she used her tears to emotionally blackmail and manipulate Puneet Issar and Praneet Bhatt. So it isn't a big deal if she tries her same tack-ticks again.
But the fact remains, will Karishma be able to gain back the trust of her friends or not? Lets wait and watch to find out!