This weekend's episode of Birding Adventures featured a vignette with host James Currie enjoying drinks in Panama with a older couple from the United States. The husband was the birder and the wife was the S.O.B - Spouse of Birder. I thought that was pretty funny.
My advice to SOB's out there - you can't beat 'em, if you love them you might as well join them.
I recall birding in southeastern Arizona and running into several cute elderly couples on the birding trail. Almost all the stories are the same...one spouse is into birding and slowly sucks the other spouse into it, sometimes kicking and screaming, but for the sake of love they eventually give in.
Tip to birders who have reluctant spouses: get your spouse a decent set of optics so they can see and enjoy the birds like you do. This makes all the difference in the world!