Pakhi is keenly observing Virat's expression all the time. At the reception the moment he displayed the displeasure (to himself) over the way things were heading she immediately jumped in disguising as an agony aunt trying to guide immature Sai ( actually to belittle Sai).
The way I read it, henceforth Virat's dilemma's (to side with Sai or not) will be her opportunities to manipulate Virat.
Pata nahi banda kab samajhega, what lies behind that pretty face🤔.
I found her outburst at Sai so crass as a woman🤢(Being khandani, educated and mature woman that she is)