I guess they're doing this faltu ka nonsense drama to reveal the truth after Kalma's wedding, although I have no idea how Kalyani will end up getting married to Malhar when she was forcing him to marry Avni.
Once after the wedding Mallu and Sarthak know the truth, both will be hella angry.... basically the butchering of Kalyani ain't stopping, and people keep saying she's being propped as some mahaan FL? If you look at the bigger picture, her character is being destroyed since S2 started for whatever purposes.