I don't think Preeta is sticking around with Rishabh. In this case, this is what i would love to see.
Rishabh divorces Preeta, is heartbroken but apparently everyone is too busy in celebrating Karan's return. He finds himself standing alone. lonely, in pain, in the corner while his family is celebrating with PreeRan. He is happy for them but can't help feel this deep emptiness and pain in his heart. After all he is human too who has a beating heart and today his heart is bleeding. He quietly leaves without anyone noticing.
He is driving his car, no clue where he is heading, wherever the road takes him, somewhere far away from, where no one knows him, has no expectations from him, somewhere where he can be his own person without any bondage and expectations. Rishabh was lost in his thoughts and didn't see the truck approaching him, before Rishabh could react, the headlights of the truck blinded him, he moved the steering wheel and the car took a sharp right to avoid the collision but in the process headed for the cliff instead. The car fell in the cliff, Rishabh's life flashed before his eyes, His dad, mom, Karan, Preeta and then his entire family. That was the last thing Rishabh remembered.
When Rishabh opened his eyes, he found himself in a shady place. He was in a brothel. He looked around, confused and weak, he tried to get back, lost his balance and was about to fall when someone rushed to his side and held his hand. His eyes fell on the hand that was holding his hand and the bangle jhoomar in the hand (he noticed the sound (khanak) of the jhoomar)
'Aap uth gae??? Aap theek toh hai? Main abhi doctor ko call karti hoon'.
He adjusted his eyes and finally saw the face. She was beautiful, she wore a dark lipstick and her make up was not subtle at all BUT beneath that layer of foundation he could see a beautiful, innocent face. There was something about her, her eyes was so expressive, for a sec it felt as if he could peek through her eyes right into her soul. There was something so different about her, what was it? And the realisation dawned on him, SHE WAS HOLDING HIM, supporting him so that he doesn't fall. This has never happened before with him !
Rishabh Luthra, the one who had always supported others, his family, Karan, even Preeta. He was the pillar of strength for others but himself never had someone who could do the same for him BUT this time around, for the first time in his life, there was someone who was holding him, supporting him, preventing him from falling. Koi tha Rishabh ka haath thamne vala, uska saath dene vala, usse girne se bachane vala.......... (To be continued I guess)