I know this is an ekta serial and all, and one day (on the last episode...) true love will find one another and all that jazz...
But I think it would be awesome if Raunak and Kasturi do get married and they live a simple happy married life and Robbie does find out the truth (after Raunak and Kasturi get married). He (Robbie) feels guilty, and realizes what a jerk he is and goes to Kasturi for forgiveness. Kasturi would forgive him, but she realizes that she is over Robbie. And even though Robbie, he realizes that he had his chance with Kasturi but blew it. So now, he admits his love and Kasturi rejects him (because she is married to Raunak). And Robbie accepts and remains friends with Kasturi and Raunak. But he realizes what a great thing love is and how no one should toy with it like his mom did. So Robbie lives (while loving Kasturi) and goes on to marry someone else (even though his heart belongs to Kasturi) he just wishes the best for her. And Kasturi and Raunak live happily together in a middle class life. Robbie will still be living the big life, but he will realize that the simple life is the way to go, so he will buy a house close to Raunak and Kasturi and they will all hang out together all the time!
Wow...Ekta would SO not go for that....
Okay people, just omit waht I said all together....