After today's episode it has became clear that Pakhi is doing all this just to get Virat's attention.
In the precap, when she says: Complain about me to Virat so he can scold me.. just goes on to show her desperation to gets Virat attention in any form.She apparently feels that Virat will only respond when Sai is hurt, so she has started hurting Sai.
I am waiting Sai to give her answer in the kanguage she understands.I don't hope anything from Virat as his called guilt, wrong notion of love will not allow him to show Patralekha her place.