Seems like the societal bounds are getting in the way. The sexual tension between these two is enormous. Far more than between Shara and Tejran.
They are like the kind of couple of who will fight for hours and then make up with a torrid session. Rinse and repeat. They kinda play a verbal version of that anyways. Dono taraf aag barabar ki lagi hai.
What do they truly feel for each other?
I have almost no doubt that Neha has come as a WC to BB15 for Pratik. Despite anything she says. It is her one chance to spend this much time in close contact with the man she desires without her family being present. Phir bhale hi ye national television pe kyun na karna pade. She is taking her chance to pursue her needs.