Koyal And Faizi's Marriage

In this episode of Ziddi Dil Maane Na, everyone in the academy is ready to go for Faizi's marriage. Faizi tells that he is missing Karan, I wish he was here. Thereupon, they all reach the marriage registrar. Besides, when Faizi and Koyal were heeding inside the office, Nikhil tells Koyal that he wants to go to the washroom. Koyal takes him to the washroom, but who is following Koyal?