But why should this happen?
This darkest cloud has a silver lining. Union of a father and son who grew distant because of father's past mistake. Another Father taking his daughter back into his arms who pushed her away because she chose a life partner whom he didn't approve.
That torture did a little physical harm to adiya but it gave new strength to them in each other's presence. Aditya was only concerned for Zoya, he didn't care for his pain. He wanted his father's assurance that he will free Zoya at all costs.
When someone's pain becomes your ache and their happiness is what you yearn for and that person comes before everything/everyone else, what you have for this person is love. Aditya is already in love.
Everything happens for a reason. Even the baddest of time gives the best in life. Adiya got each other after they had darkest phase of their life.