Relationships

Why do we want them? Is attraction physical or psychological? What are the influences on us wanting relationships? Life, reproduction, culture, continuation of the blood-line, companionship, (in)security, loneliness, sexual impulse. What's it all about and why do some factors matter to some more than others? Is the whole thing overrated?

These are things I've been considering recently and I'd like to discuss them on the blog sometime soon.

FYI the background...
I've had several crushes in life to females close and not so close to me, only one long-term relationship ended a year ago, no overnight-short-medium term relationships, I'm content with life in and out of relationships but wonder why I keep getting the urge to have another relationship. It logically doesn't make sense, 'cos although I love sex and women, I really like independance and having all my time to do my activities. I'm not interested in quick relationships, I'd prefer to find someone special and have a long intimate relationship. Logically, I'd prefer to stay out of relationships for now, but I still get the physical yearning and I dont know why. I'd like to explore it to see where it comes from.