Her change in behaviour was sudden, she was not an evil initially.
First and foremost the Dadi..I am sure, needless to explain her role. The way she brought up her pothi, is like a princess, and only she is important in the world. She taught Rags that every thing around her world, Ragini only have the priority to achieve it. Remember the way, she was putting pressure in the 1st jugalbandi competition in the show. Even when Lakshya rejected the proposal at first instance, she promised rags, that she will get him back, as it is her right. Thus, she made her believe, in every thing in the world, only Ragini have the priority to get it.
Then Lakshya, who many times played with her emotions(he may have reasons to justify that, but they were his personal reasons, nothing to do with Ragini)..
Next Sanskar, he too played with her emotions. He ignited her suppressed love for Lakshya, which in turn, gone against Swara. Sanskar was less bothered that he was playing with 2 girls emotions, in the process of his revenge. How can he expect Ragini to forget all his revenge teachings all of a sudden, just because he repend for Swara. How can he expect Ragini to forget everything in a phonecall??
Then Sujatha, who introduced her to many evil plots, that she even had not known before, just to avoid a bengali girl's entry to her home, and to help in her son's revenge.
But now all arrows are pointing towards Ragini, because, all these evil effects have made her so strong that, even her gurus themselves are getting the taste of their influence.
She did wrong to Swara, nobody can justify her for ploting against her loving sister, who gave importance to Ragini than herself..
But others did wrong to her, to their selfish needs.. For that Ragini deserves a sympathy.
Even I hate Ragini at present. I cant tolerate her now onscreen. I even hate the song "moh moh ke daage" from the moment they played it for her.
But I think, when we badmouth Ragini, these people are also dont deserve any sympathy..
If Ragini is bad, we cant ignore their role in that.
She still have some goodness left in her, like yesterday, when she heard about Shona-shekhar re-uniting, at first, she was happy. It was dadi who again mislead her.
Sure, once the truth out, Swara will help Ragini to regain everything, including her husband.
She will surely have all these reasons to support Ragiini..
Please, no rotten eggs, tomatoes or chappals.
Though I know, this post will surely invite these things.
Just give your views... ;)