It's good to hear there's another one out there like me.
I gave up on 'best friends' when I was at school, because they always let you down in the end or are more trouble than they're worth.
I let off steam to my mum and have loads of friends that I spend time with and of whom I enjoy their company. I'm very loyal to them all, but put them all on the scales so that none of them dominate my time or energy over and above the other ones.
Some girls in the past have persued me as a best mate but it's always ended in disaster and I end up feeling let down and have been hurt.
I sometimes think I should have someone there I can share all my inner most feelings with, but I'm blessed with a big mouth and an open heart so just tell people what's on my mind anyway! The only people I tend to rely on is family.
Being like this has caused me problems as I need to choose a god mother soon for my DD, and I've nobody I'd like to ask! Same happened when I needed bridesmaids! Other than these sorts of situations, I like being free, sociable and wearing my heart on my sleeve with my companions.
Personally, I think you're better off this way (best friendless) as you're more independant and open to others.