There's so much discussion about Sai's feelings & everyone has a different perspective. So I made a separate thread to discuss this topic.
what I have seen/read here mostly is that Sai's feelings for Virat are platonic & more on the sympathy or friendship level .
lol I might be the only one who doesn't think that Sai's possessiveness over Virat is platonic. I think it's absolutely romantic & Sai IS falling in love with Virat. She's just not going to admit it. She'll keep being possessive, get hurt & angry whenever she'll see Virat talking to Pakhi (like she always does 😜).
I think Virat will be the one who's gonna be more difficult in the love department bcoz Pakhi is always hovering over him with that stupid vaada. So he'll take time to understand his feelings for Sai. And even more time to confess those feelings.
Virat feels guilty & responsible for Pakhi. And bhabhi ji doesn't leave a chance to remind him of his vaada, increasing that guilt in him.
Sai has no such baggage. She's free to fall in love & she's already falling. I mean I never expected Sai to be so worried about Virat like she was today. Poor girl couldn't even eat bcoz "Virat sir ne kuchh nahi khaya". Girl, you are so in love with your Virat Sir 
Virat is also feeling those love feels for Sai. But his Pakhi baggage is pulling him back.
Anyway it's interesting to watch Sai & Virat so conflicted about their feelings.
Feel free to discuss your POV regarding Sai's feelings for Virat. Let's see what we all think on the matter 😉