You're right, that IS one of the saddest things. Forces me to think about husband/wife teams. Not only does the spouse lose his/her significant other, which is awful enough in itself. The widow/widower also loses their team status, perhaps their driving business (if they choose to not drive as a single or team with an unknown), and therefore possibly their income, and in some cases, perhaps even their 'home' (if they had given up their land-home to be on the road). Not to mention how hard it must be to be in your spouse's company, day in and day out, in close quarters, every day, and then suddenly be without them. Talk about culture shock!
Arlene my heart goes out to you in so many ways. I hope all husband/wife teams take notice and as uncomfortable as it may be to plan for such an eventuality, have a plan in place.