I believe that asad annoucing his engagement to Tannu is going to be the breaking point for Zoya and she will finally move out unable to see him being married to someone eelse and yes the MUings will play a huge role too.
Lol... zoya tog unki band baja degi 😆
But I think her going into that house is ultimately going to help her grow without Asad, Mature into a responsible young lady who will know the seriousness of the position of being a wife and a bahu to a family.
Asad's family is just three people, she hasn't seen the various responsibilities a woman takes on once she becomes a wife and bahu to someones family.
Yeah! Ultimately it's the transformation of both Asad and Zoya! Zoya is matured, it's only outside she appears childish sometime, that's because she takes things lightly and coolely! As you said entry into siddiqui's house will transform her into a responsible woman, also she will know and will understand the cruel side of the world! Zoya will learn everything is not as sweet as she thinks and Asad will learn everything is not as bitter as he thinks!