Guidance     Strange relationships - zany out-of-control relationships that are intimate - work. Nobody knows what goes on behind closed doors, the song says. People who deal with one another one-on-one deal just fine with their mutual craziness. There are so many possible styles of pairing up that you have to wonder just what marriage really is. Just like there are a million ways for a real estate deal to go kaflooey, but people buy and sell property every day. If you have someone who validates...