Not only zubi can be blamed. Umair always had an issue with Sadia ahmer from start but Zubi added fuel to the fire inside him. After he got ring he saw ahmer laughing in the car and he thought sadia and ahmer were speaking on the phone. He called her to see and got more angry when line was busy. Zubi wasn't even a part of the scene. Umair is dumb himself bana Kya hai?
but ruby sadia Ahmer milte the and all ye sab baate bhi to zobi ne hi umair k mind me daali thi na..
zobi jab umair ki GF thi wo tab as sadia ko galat show karti thi.. just b/c sadia ko galat show kar k wo khud acchi banti thi umair k saamne.. umair ye soche k zobi acchi hai apni limits Cross nahi karti relation me and uski badi sister sab kuch kar rahi hai and acchi banti hai.
that's y umair always said to sadia tum patthar dil ho, tumhe kisi se pyaar nahi and all bad thing