IMO Nehmat wants to prove a point to Renuka, show her mahanta, and is ignorant of Ekam's feelings. Also, it is the greatness of Sandhus, who knows everything and still wants to carry Nehmat to Ekleen's engagement and wedding functions.
There is also another aspect, which is that Nehmat truly doesn't want Nehkam relationship to end; she wants to keep it alive by giving it different name. Isiliye kabhi rooh chhod thi hai kabhi kuch aur.. 😆
But according to writers the reason is
Abhi Harleen ne bhi kaha hai Nekham apna relationship continue kar sakthe hai.. 🤣🤣
now after advait harleen also want threesome😲is it ekam effect or nehmat? i guess ekam🤣
why harleen acts like she is advaits sister following his path