Your points are right sana.
maybe they wanted to show sadia umair unconventional. If they got close normally and then he doubted her then it will be typical and conventional. Like they show in other shows. Here they made him villain with the rape then showed him apologise and accept her..but then jealousy with doubt and DNA twist and he apologising. They is no love story without scars and sadia umair ka case mein it was clear..He should have not raped her, he had no right to taint her but he did it.the writer took the most unconventional route to show then.as end game. I still feel they didn't think sadia umair will click with audience but they did..
For me the good things were
Momal muneeb chemistry
Sadia umair ending up together
Zubi not getting umair.
Umair ne drunken stage me force kiya ye mujhe bura laga..agar ye show karte k us time drunken stage me force relation nahi hua tha dono weak ho Gaye and next day umair bhul Gaya to bhi acceptabel hota.
But phir bhi ye baat atlist sahi show ki k umair ko kuch yaad hi nahi tha..agar yaad hota and still wo baby ko Ahmer ka bolta than to I just hate him .