KK needs to run away from her ASAP . RED FLAG 🚩. She is mentally abusing him , harassing him. She will force him to break all his relations with his friends and family . She wants to control him completely. She wants to know what he does , with whom he talks , what he talks . She will make his life hell in outside world. She will isolate him so that he depends on her & comes to her for everything.
Typical narcissistic behaviour, if in frustration he will react he will be called abusive and she will be the victim but real victim is Karan here .
Narcissistic people are the most toxic . Even in real life , be aware guys . They will mentally abuse you & when you will react they will tell the world that how nice they are and other person is abusive who is reacting. That’s how they behave.
I tried to give her benefit of doubt as many things these people do is for the show , for fake fights & drama but no . She is a narcissistic person and I can see through her . 
