Pree i guess...
Rudra decision to take online class.....
from there i saw changes of Pree towards Ru.....
Naaa... even for Pree I felt it was from the S kidnapping only... since Rudra was the only one apart from herself who was desperate for finding Saaransh as much as herself. She starts off with hugging him in pain/desperation, asking him to share room & then in small unconscious things like, preferring him over Yuvi in finding out Saaransh, trying to explain to Rudra that all 3 can go to hospital (like a wife does) & then defending him to Yuvi at the hospital.
Small things.