(((Nos))) I've found myself over time that "friendship" is a relatively loose term - and that by the end of it all, one can have 100's of acquaintences, but only a handful of true friends.
It sounds like the people you've hung with are either to self-absorbed to notice they've hurt your feelings, or are just jack-off's who aren't worth your time. Only you can really know the difference.
As far as women being "better" friends *snort* don't buy it for a moment. Women tend to be "fickle" and can "loose" friendships based on idle gossip, rumor & innuendo. Men, once they've become true friends are usually so through life - regardless where geographics take them. At least that's been what I've noticed.
One day you will evaluate your life, and realize you have real friends - it will happen for you. It usually takes about a lifetime though - and treasure the ones you find!