There is a Korean drama which triangle part is similar to our khkt.. I am an addicted to kdrama's.. My lovely sam soon is a very old show but still as an addicted i watched that.. There also the old gf of main lead guy left him for some illness issue and come back when he already fell in love with main lead lady who is sam soon.. There the x gf was not totally negative but she did try to keep the hero for her and tried to brainwash and emotional blackmail sam soon the heroine.. But sam soon was Very determined and clear on that she can never let go her man if her man chooses her.. She can't be selfless and do sacrifices for anyone though the x gf was still sick.. She told of clearly to the x that if my man want to be with me i will not leave him u better move on.. I also want same determination from sona too.. She better doesn't try to b parvati and sacrifice rohit just because she feels pity for raima.. That will b so typical and unrealistic.. Anyway did any of u watch that drama? It was hyun bin's one of the best and one of the highest rated k drama of all time..it's plot was so realistic that it was bound to be a massive hit.. Khkt writers should follow something like that drama.. Indian tv already have seen many unrealistic sacrificing main lead lady.. It's needed to be changed..