Same reason you dont want Khirad and Asher together.
Yes deep inside Priya still loves Aditya...obviously cares about the family but its the same family from whom you can never detach Brahma.Even though BJ is going to be long gone when in the end they get together but practically speaking this wouldnt happen in real.They dont even have a kid to take care of.
In real life no woman would have stayed quiet for a year.
And if Priya can accept Aditya and get intimate with him knowing he is Brahmas son then whats stopping her now.
Besides i want them together.
Rits ... so you watch Humsafar too?