I think Prerna and Komo are more obsessed with eachother than they are with Anurag.
Did you see how Prerna keep having flashbacks of Komo as well? And Komo said to Prerna when she return that her life was boring without her. I find it strange how these two have eachother in their contacts, calling up and talking to your enemy is one thing but why you have your father murder phone number? So Prerna still having the hots for Anurag is nothing. She herself is a toxic and problematic person.
u said it all ...
Komo is her father's murderer
and she considers Anurag her daughter's killer
but I guess it's all right ... father and daughter are not above her obsession for one person.
absolutely problem lies with her and makes absolutely no sense for her to point fingers at Anurag or Komolika or anyone for that matter