Adultery அவள் இதயத்தின் மொழி

[Shajith]

I mean to say she is a trendsetter, living example or role model for today's woman.

Oh, now I understand what you mean. 
So you are actually calling Pavithra a “trendsetter, living example and role model for today’s women.”
In that case, your earlier comment makes even more sense. 
But I think there is a small difference between describing a fictional character and endorsing the character’s behaviour as a real-life role model.
Pavithra is a fictional character created for a particular storyline. Readers can like her, dislike her, support her choices, or strongly disagree with them. That is completely fine.
But calling her a “role model for today’s women” is no longer really a criticism of the story. That is your own interpretation of what her behaviour represents.
And honestly, I think the author herself should decide what Pavithra represents in the story. 
As readers, we can discuss the character. We don't necessarily have to turn every fictional character into a social trendsetter or role model.
Otherwise, tomorrow every character who makes a questionable decision will become a “trendsetter,” and the comment section will become a role-model award ceremony! 
Criticize the character if you want. Appreciate the character if you want. Disagree with the character if you want. But let's not confuse a fictional character's actions with a real-life recommendation for society.
That, I think, is where the line should be.