Is it normal to want to be alone?

I have a very strong desire to be alone. I find great peace and solace in being by myself. In fact stepping back and looking at the natural patterns in my life its almost as if its meant to be...no friends, no family, just my wife and myself. In fact looking back on my life I've never been close to anyone, never any close friends although I have known a lot of people I really don't hang out or get that close. Now with only one person in my life I often find myself dreaming of finally moving away to live by myself.