I agree with you. I am not for Khushi simply punishing an innocent Arnav here as he was and is not responsible of his father's deeds. But can be done in case he decides to accuse Khushi despite this whole scenario not being her fault at all. Knowing Khushi, she probably will not sink down to this level - she is not like Dadi.
I can understand why he would react such a way as this all such a huge shock for him but taking it out on Khushi will not be the right thing to do. I am really hoping that the whole truth is investigated from all angles before a decision is made regarding the separation/ ending the marriage.
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