I dont really think jai and bani will be separated forever.
i mean remember in "kutumb" also when both of them finally fall in love, they do get separated a few times but then they do get back together right? And i think the same happened in that serial "kuch jhuki si palke". though i never really watched these serials till the very end but i think this is what happened.
I mean ofcourse either jai or bani will have to get married a 2nd time....and ofcourse there will be lots of separations and getting back togethers and ups and downs and misunderstandings in their relationships....we cant deny that......this is what always happens in K serials.
so basically we all will have to go through lots of happy moments and sad moments with jai and bani. but deep down inside in really feel that jai will confess his love for bani soon.
But at the end of it they will be together.