I think with her character, the makers are doing a good job of depicting a person with psychiatric troubles. These kinds of problems are typically not that well acknowledged in Indian society.
I have had the misfortune of being the target of a stalker with similar illusionary tendencies and my life for almost three years was hell! First at college, then at work. Unfortunately, most people including college administration, police and his family did not understand that he wasn't just some hormone charged teenager in love, but an ill person who needed psychiatric help. And yes - they are as annoying and incorrigible as Vasudha is.
So, I'm actually quite looking forward to how they deal with her character.