history: My husband travels extensively for work, so I have to have faith that he will be loyal and faithful to me when he is on business trips. My husband has to travel a lot for work. It can be hard on a marriage_comma_ but after almost 23 years of marriage_comma_ I have faith he is loyal and faithful when he does. What does your husband do for work?
current: He is an iron worker, so he has to go state to state at times to build very large buildings. 
next: My uncle use to be an iron worker, so I know exactly what you are talking about.