Badi Bi thought that Asad would not bring zoya to SM, but here she never took into account Asad love for his sisters, and how Asad would react to nikhats condition. Badi bi has never thought about Asad, she has never on her part contacted Asad or Dilshad or Najma. she does not have the same care she has for Asad as she has for Ayaan. and badi bi only want Ayaan and Zoya to be toghter because this causes a flop of Razia plans the question is does she really care for her grandchildren's happiness???? i dont think so, she knows very well that Ayaan loves humeira cause she encouraged humeira to tell ayaan that she loves him. and she knows that Asad and Zoya were to be married twice, so it is obvious that this pair are in love.
Ayaan does inform the family that the nikha happened but that it was an accident and neither of them ment for it to happen. so how can they simply assume that two people who are in love with other people will want to stay together. how can any marriage be a marriage if the promises were never really made. zoya never said yes to Ayaan, technically cause she was answering Asad question and not the Quazi. Ayaan never said yes to Zoya cause technically he to was not answering the Quasi question but talking to his dad on the phone. so in reality Ayaan and Zoya never made any promise to each other.
Ayaan made a promise to Asad that he would bring zoya back
Zoya made a promise to humeira that she will get Ayaan back
Asad made a promise to zoya that he will make everything right and zoya will be where she rightfully belongs with him.
badi bi sees everything and knows everything, yet she is under the perception that are right the way they are. when in reality they are not. and that is where badi bi is wrong.