For me, i found all the leads having faults in one way or another. Some found malini manipulative in a way. We can say that, everytime she has done that because she did not want to leave Adi. May be she has seen her parents marriage falling apart. So she does not want to happen with her. But same thing happened with her. 
I would have been okay with imlie if she has not done the following things. She let Adi married someone else. She is fault at that. Even after that her behavior was hypocrisy. She called malini didi but kept wearing sindoir in front of Adi to remind him every time. Malini illness cannot excuse their behavior that Adi married her. He could have told anyone from his or her family. They coukd have delayed the marriage. After getting married, having romance with imlie seemed wrong to me. They both literally destroyed everything. Now Adi is like Imlie is my wife only not malini. Why they both made fun of her life and trust she put into both of them. 
Malini line saying now u would know how it feels when someone broke the trust kind if hits me. Because it is true. Because after doing all of that Adi and imlie will live happily, humiliating malini and giving her divorcee tag. So for me malini seems more victim. Anu got successful in manipulative malini only because Adi and imlie did wrong with her. I don’t see anything wrong with malini humilating. Both of them but would have love if she would have snd both of them to send fir cheating her.
I don’t give sympathy to imlie because of the life she had. Because it was both meethi and dev fault. How come meethi did not know dev he is pretty rich and famous as well. Whatever both did was consensual. If she does not know a guy and about his family, then she should have been ready to bear the consequences as well. At the end, she did end up breaking somebody marriage even if she did not know about it.