Ok after watching today's episode I felt that unless Bani decides to go back to Jai after what Pia told her about not interfering in her marriage then it is surely going to be the remaking of Jai-Pia pair. it will last or not I am not sure but surely there will be something coming up soon between these two.
As for Jai - Realisation that he is in love with Bani has not come to him as of yet. HE is totally engrossed with his baby rather than his wife. So I think after Pia's coming back to his life and Pia's (as we al know that she is all about money and expensive things) nature they will start to go out and spending more time with each other maybe talking about their peresonal problems and then ......
AS for Bani - If she does not go back then she might think that Jai still oves Pia an dshe should go away from here and then Pushky being htere for her and then they have soft corner coming back to Bani (hormones and all).
And for Bani to be sure that Jai loves her I think it is important thatJai gets involved with Pia again and then leaves her with the realization that he is not even in love with her it was all through out BANI. If not then Bani would always feelt hat she is the second choice adn he is with her only for the baby's sake.