I too had thought about similarities in Pooja-Zoya situation few days back. Glad u made a post on it.
Pooja was attracted to Yash. She knew her feelings are wrong but still she kept on meeting Yash on some pretext or the other. Kabhi for painting his portrait or kabhi for giving him 5 crores rupees cheque.
Zoya too was attracted to Adi but she kept on distancing herself from him. It's not just because of her anger but also because of her promise to Abbu that she will marry his choice.
Pooja blamed Adi for her falling in love with Yash by saying that Adi didn't love and understand her. Zoya was just not ready to accept her love because she knew if she accepts it, she'll hurt her Abbu.
Pooja was cheating on both the men, Adi and Yash. The fact that Adi never suspected her of cheating him means she gave everything to him that a wife gives to her husband and at the same time, she was also sleeping with Yash.
Zoya didn't cheat any of the men. Adi was in her heart but Arshad was in her mind. The moment she realized she can't fulfill her duties as Arshad's wife because he needs to be in her heart too, she backed off and her long silence after Qazi's questions was her refusal to marry him.