You have a point...
But then, insanity and thoughtlesness are some of the first few things that love does to even the most sane people. And here , you really cannot blame Avni....
I mean ,what do you expect a gentle , mild and vulnerable woman like Avni to do when a persistent , focussed and passionate man like Sameer pushes you off the edge as far as your heart is concerned.
Avni has no chance to think or do anything. It is completely Sam's play. He knows that he cannot give Avni much time or space to think... because the latent Gujral strength might raise it's head.
It is no longer about hearts.......it is all vengeful planning. Sam is not seeing the damage he is doing to Avni because his focus , like Pri and V is avenging his father's death.