I have been a truckers wife for 3 years and its not easy. I have moved from Chicago Il to savannah Ga and I am at home alone most of the time, it pretty much suck's.
Neicie, it sounds like you are without child. If that is true, why don't you go out with him on the road.
Also, something that you can do while you are there at home is enroll in community college or take a correspondence course, join a gym or other group to occupy free time and give you something else to focus on to take away some of the suckiness, :-).
Might even look into freight brokering or dispatching so that you have some common knowledge with hubby about trucking. It could lead to a business venture and more money. It could lead to him coming off the road.