Both Kirti and NIsha lacks maturity. Nisha does everything without thinking about anything else while Kirti wont put in trouble until she herself is in trouble.
Umesh had to wear the lehenga. Dolly's marriage was in fix but neither NIsha nor Kirti understood the situation. Nishu is still annoyed why she was asked to wear the lehenga and very contented that she wore it. Never mind if it puts others in problem
Kirti on the other hand is concerned about the dance performance that was nothing more than an embarrasment.
Kirti had no right to break the news of Umesh bhaiya's GF. It was personal thing and needed Umesh to deal it on his own. Kirti doesn't know about true love therefore she is still arguing, " Sach hi to bola"