Hi, I haven't watched any serials for a long time...so I am unable to comment on your above post.
But isn't it better to portray a character with selfish, heartless traits than to be a selfish, heartless person in real life?
I would hate to interact with someone who I thought was genuinely good, only to realise that they had their own selfish intentions in their mind all along. Man, I would eat up those kind of people alive!
Sadly, such characters do exist in the real world.
As far as the serial goes, it is a Ramya Krishnan show, so the storyline would want the audience to sympathise with her character by showing her being deceived, betrayed, isolated, etc.
As an actor, it's up to you how you display with conviction the sudden change of thoughts your character undergoes.
It's a confusing task for a given job...and only a good actor can do it like a pro...
but honestly, it's not as confusing as it is in real life.
In real life, it is more confusing and yet we all smile and give the thumbs up sign, don't we?
We knew Vaishnavi, the young budding actress of Muhurtham.
We knew why she committed suicide.
We knew who was held responsible behind her tragic act.
And yet that person is on facebook posting nice pics of himself like he is the ideal, charming family man...
Better yet, he gets the thumbs up sign for it...
How confusing can this world get?