1. When we are young we all fantasize about having one
2. When we're older we all fantasize about not having one
3. People come and go for reasons we don't always understand
4. Communication is the key to success
5. When you're in one that doesn't work, everybody else seems ideal
6. We sometimes stay longer than is good for both of us
7. We've all had at least one that was a big mistake
8. A lot of the fit depends on personality and values
9. They're most exciting when they're new
10. We start out spending a lot of time on how we look