I think the CVs are taking this season of UD in the KZK1 way where Nehkam like Anupre love each other eternaly but are destined to stay separated because of fate.
While Nehvait is like Prerish who are forced to marry each other, however later Advait like Rishabh Bajaj will fall in love with Nehmat but his love will be never reciprocated.
I think the CVs had pre-planned this somewhere right in the beginning which is why Advait got introduced in the 3rd or 4th week of season 2.