Along these lines, what was the book about a man being conscripted onto a spaceship? It was an unpopular job because centuries would pass on planets while only months passed for the members of the ship. I could go into more detail, but I don't want to be spoilerish. For some reason, I want to say it was a Heinlein book, but I'm not sure.
The Forever War by Joe Haldeman. I like to recommend it to anyone who's read Heinlein's Starship Troopers.
That wasn't the book I was thinking of, but I wikied it, and it's on my list now. Thanks, your recommendations are usually good ones!
In the book I'm thinking of, it was a merchant ship. They returned to Earth about 80 years Earth time after they left. The conscript was grabbed at a bar just before his wedding. When they came back, his fiancee was, of course, old.
Ack, now it's gonna drive me crazier than I already am.