I think for Sattu the most beloved thing is Pari's love for him. So, he has sacrificied that to get Pari's life back.
He also thinks he is responsible for all her misfortue. So, he is going to do "prayashchit-to".
Hence he is the one who is putting the seed of doubt in Pari's heart that will culminate into hatred against him. And this
way he will fulfill his vow. This could lead to complete divorce and Pari's marriage to that boy Lashkar etc...
This is what looks like to be the most plausible future track.
So, let's see how Maa-saheb, Shona and others will come forward for this not to happen.
Whatever - it is not possible that Sattu is falling for Shona - because his love for Pari is pure and this track will show the pureness of this love.
I would suggest who love this show not to show unnecessary anger and frustration but enjoy the acting and tracks...
Pari and sattu will have their milan - don't worry and Allaah kare Hiba or Pearl bhi...
this is my guesss...😕