There are devout people in all religions as there are those who are religious liberals. A lot goes on behind closed doors in Iran, not all follow the strict form of the religion, only those who are in complete control of the country are the religious fanatics. Sad state of affairs, from our point of view, but then again we are dealing with a different culture. Her father is most likely dead, they’ll get married, end of story.
Mohammed had the permission of Aisha’s father to marry.