Ok, I understand your post and point.
However, I feel like Sai was trying to be calm for once. Both were still angry, that is clear. Virat was trying to break the silence and make the first step which is, in fact very nice of him. Sai was giving him the silent treatment, which is fine as well.
It all went down to the drain when he couldn't bear her silence and kept on talking. I feel like he could leave it at that, given that she was not cooperating. Plus, Sai had a test as well, so she was trying to avoid confrontation by moving back and forth to the bed and study table.
Im not saying Virat is wrong in trying to clear the differences, but, Sai had reasons to be angry as well.
Moreover, when he told her that "umeed mat rakhna", Sai took that literally, if she shouldn't expect him to be her husband, he shouldn't as well. She is not clear (even we are not🤣) if he was only referring to the physical intimacy. Thing is Chavan saheb umeed rakhne lage hain, aur shayad kuch zyada hi rakh rahe hain😆
Both were not entirely right and both were not entirely wrong.