hello dear;
I am an iranian with 23 years old and I write this answer for you just you know IRAN better(without any protect).
Iran is a very safe and nice country with more than 7000 years history(burned city at baloochestan province)and 2500-3000 years ago from india and china to spain all belongs to iran empire(persia), and the things that you heard from other persons or other media about the terrorism in iran is absoloutly wrong , and you heard these lies because U.S and Israel havent a good diplomatics relations with iran and they want to show this country weak,terrorist,and ... (of course that iranian gov. are wrong too) .
Iranian people loves their guests specialy if they were americans or from west.you can ask this from people who traveled to iran.
Maby you heard that people in iran drive on camels!! or they are arabians ,but thats not right because iran isnt arabic country.
Iran is one of the best country for tourists but unfortunatly many people dont know that.
iran is 4 season country.you can sking/swiming/ even at winter or summer.
I think that if you come to iran you never will forget it ever.
I dont know your husband family but I think that they are good and I dont have any information about marriage laws in iran.
GOOD LUCK