Cairo is a Small City

Being that I am not personally a fan of the Arabic culture, I will try and paint a nice picture. Basically this man has been stalking this woman for awhile and starts falling madly in love with her. So much that he starts building his buildings after the months he had left untill he could see her because he was an engineer. Then he takes all the steps into getting a meeting with the girls father to ask for permission of her hand and the rest gets tricky. I didnt understand the turning point with the gun being brought out and the point at the end where Adil was killed.