Yet to see the episode [might change my opinion post watching].
Sai would have acted as a doting wife, and she did start off like that, asking him to eat more because there was a long fight ahead.
But, then Virat asked her to accept Patralekha as her mentor, reaffirming again and again that it was not a real marriage. His refusing to eat what she had cooked again stopped her from taking a step forward.
When he threw the plate and shared his suspension with Patraleka [Sai probably read is as, he prefer sharing his stuff with his best friend and not her].
In the pyar-dosti episode, she was eager to share, but he again snubbed her, reminding her about Patralekha's leaving the house [Sai must have read it as, he does not want to hear what I want to share.]
He was the one who made the rules for their relationship, and Sai is sticking to playing within the rules. He needs to inform her that he has made some amendments and expects her to change accordingly.
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