I am not married, but have been with my girlfriend since the beginning (aka 4.5 years) It is very different for most of the significant others. Some days you are home on a regualr basis, where other days you may be gone overnight. First, you need to know that the other person is very understanding, and secondly they realize the time and effort that goes into your career. If you do not have those two mastered you can come home to some very difficult nights. Also, even if everyting is rock solid, you have to realize that you are not the one making the sacrifice, it is your wife/ husband that is home alone and dealing with everything while you are flyimg...so make sure that when you get home that you show appreciation with everything that they are doing.