Although I understand that everyone wants Bani and Jai to get back together, this is a "soap opera." It won't happen with a snap of a finger. I'm sure that they will eventually get back together again only to be separated once again by some new conflict. That's how Soap Operas work. Therefore, Tauran being there for Bani does not necessarily mean they will fall for each other. But even if they do, somehow or another Bani and Jai will find their way back to each other. So I think all this bashing of Tauran's character should stop. There really isn't much you can do but wait it out for Bani and Jai to unite. Every Soap Opera does need a few villians, who better than you're own blood? Hence, as much as I HATE Pia, she makes the show interesting. Her character keeps the plot moving. All that Roshni's character does, is done so that we as viewers come to destest her. They will probably show some kind of redemption of her Character further down the road. But until then, I think some of us are getting a bit too carried away with what is happening.
By the way, I would love to see Jigyasa become a positive character. In fact, I would love for something horrible happen to her and it's Bani who comes to her Aid, which will then ultimately force her to see Bani in a new light. *sigh* If only dreams came true :D But hey, who knows? It may actually happen too?