It is interesting to see everyone's perspective's on this, and it makes me think it really depends on the person.
I am still quite young, so I have no idea what lies ahead for me in this perspective. I still cling to the idea that true love exists. I personally hope that I have someone to share my life with, and I want that to be my current boyfriend. But I don't think everyone wants that.
My grandparents were married for over 50 years, and although they have both passed (grandfather five years ago and grandmothers this past March) they were still so much in love with eachother. They made me believe in true love.
My ex-bf's parents met when they were fifteen, married at 21, and were married for twenty-six years, until my bf's father passed suddenly from a heart-attack two years ago. This was another couple that although their relationship had a sad end, they were still as much in love as they were 26 years ago.
My mother was with my father for about 15 years before they separated. She then dated another man on and off for about ten years. She has now been single for about seven years, and I don't think she's ever been happier than she is now. She is very independant, and loves the fact that she can do what she want and doesn't have to revolve her life around someone else.
So I don't think everyone is meant to be pair-bonded. I think some people are just happier on their own at certain points in their life. As I said though, I hope true love still exists, even though there seems to be less proof of it now days. Or maybe I just think that because I work in a law office that does family law, so I deal with a lot of separations and divorces