I think forgetting all her delusional nature, we should applaud Pakhi for telling Virat that he can not hold Sai's hand or for that matter any other girl!!
Pakhi is a very weird character. I can't really hate her as she never showed any vamp characteristics yet. She really believes she is the victim and morally right. She is just plain delusional and ignorant. It doesn't even seem she wanted to have physical relation with Virat. I think she really wants importance in Virat's life and becomes a priority as her first love/friend. I really hope they show her monologue and what she really thinks. That would help us a lot to understand her character.