I've been married, and I've been single. There are advantages to both. But what I miss the most is just having someone to talk to and share life with.
I do have a five year old daughter, and right now my main concern is her. I want to make sure she gets the best of what I can offer her as her dad.
I am fairly self reliant, and I require the one I'm with to be somewhat that way too.
I have taken the Landmark curriculum for living and found that education to be quite inspiring.