Word to this entire post! So much word!
Shraddha has been carrying this show on her shoulders for such a long time, and she's outdone herself again and again, performance-wise, portraying twins with different temperaments and ostensibly every shade of emotion under the sun...
When Sudeep came into the equation, I knew for a fact that he'd be sharing the show with Shraddha, taking some of the burden off of her, complementing her acting prowess with his own in the best way possible -- and that's when I started following the show religiously. I feel like the rapport that they have as co-actors is tremendous, since this time around, the writers have given them a turbulent story and Sudeep-Shraddha launched into it, hit the ground running, and haven't lost momentum since!
Shraddha and Sudeep are MORE than capable of keeping this two-actor triangle going. I am endlessly fascinated by the way they act and react to each other while highlighting the differences between Raghu-Ayesha and Raghu-Aarti. It has made for very engaging viewing so far, thanks to their hard work.
And to bring in a new person, AFTER giving us those incredible revelation episodes -- that would completely destroy the relationship between Raghu-Aarti that I'm sure more than a few of us have grown to love. Not to mention such a move would be cliched, unrealistic, and entirely unnecessary as well, since we've already seen many times just how strong Aarti is! Her compassion is matched by her strength -- and who portrayed those aspects of Aarti's personality beautifully and subtly? Shraddha did.