It seems rare to find a couple who have been married for more than 10 years or so, most of the people that were married around the same time as my husband and I didn't even make it past the 5 year mark. At this point I consider our marriage of 18 1/2 years to be somewhat of a miracle.
People say that opposites attract, that is so true in many aspects but being able to find someone who is as much like you as they are different is something else entirely. My husband and I are as different as night and day in many aspects as we are alike in others, sometimes it is uncanny and even unsettling. He is very low key, relaxed, nonchalant, layed back, and it's no big deal type of guy. I am the mildly high strung, worry wart, anxious, take control kind of gal. It works out that I'm the boss for the most part, niiiice. We both work different shifts, he graveyard and I days, which has worked extremely well for us as there is always someone home with the children (who are now teenagers) and also means that the time we spend together has to be productive and meaningful. I'm happy with a book, he with tv (mash, friends and seinfeld) and together we are able to listen to each other and even enjoy the silence of sitting in the same room and not saying a word.
You know how you can tell if you are both on the same page/wavelength? It's when you're driving down the road just listening to the radio quietly, sort of in your own thoughts and see a train coming down the tracks and you both say CHOO! CHOO! at the exact same time without any real thought.
The funny thing about this is that when my husband and I met and first stared dating 21 years ago so many people thought we were brother and sister, we used to laugh because there is as bit of resemblence and some of the baby pictures were hard to tell apart when we later went about sorting some pictures. Same thing with the children, there is no way in hell that we could deny that they were ours even if we wanted to.