Interesting comments. I wonder if it works the other way around - if the wife is the pilot and the husband has a "normal" job?
gatwickflyer - I think your comments are pretty accurate.
I think pilots think of their time off as very precious, so if their partner wants them to do something a bit boring (like choosing furniture, whatever) during their days off then they get a bit miffed.
My other half has plenty of interests and I make sure that if I happen to be off when he is, that I don't expect him to stop doing his usual hobbies just because I happen to have a weekend off.
However, we do make a point of planning some time together when we know that we will both be off.
It is very easy to lead completely separate lives when one of you is a pilot, so you do need to make sure that you don't just drift along not really seeing each other and then 5 years down the line realise that you don't really know each other any more.