Yes that's what I was wondering too! Like why did Vasaikar add this drama? the actress Sarika is actually in some other show right now so maybe they thought this would be a better way to handle separation drama?
And maybe with the in house separation, Kukki gang at least would know what happened at the beginning, so they would act rude with him and cut him out too...
I think someone said that OG GG leaves to her dad's house multiple times so maybe to avoid that repetitiveness, they are doing this. And anyway, why should Appu leave the house? If family too doubted her, then yes she should but its only the idiot right now and it's her house too so she has every right to stay there! Family can tell BS that if he wants to take care of Netra then he can do it somewhere else.
Oh this will be interesting to watch, everyone saying to BS tu aur psycho ke liye humne hospital ke psych ward mein kamra book kiya hai wahape jao and nurse-patient khelo tum donoš¤£
But on a serious note, I think no one really understands the depth of Appu's pain right now, seeing your husband taking care of another woman is one thing, but that woman being someone who belittles her and taunts her is on a whole another level, and even if Appu tells everyone the truth now BS might think she lying and acting out of jealously. But if she leaves quietly with dignity and just says in a letter that I hope you have a good life with her, I think everyone will take more active efforts to know the whole truth and will realise their grave mistake