Re: Another Lesson Burned.
Although you "look pretty good," your account has something to do with Andersen's most famous fable: The Ugly Duckling. Do you know it? It's about feeling (or actually being) rejected while apparently doing nothing wrong at all.
I don't know what to tell you in order to make you stay more comfortable in your life. Maybe it's only a question of time. You seem to be mature enough, yet it could be the case that you are still in the process of maturing, and what you tend to read as betrayals, snubbing, letdowns, etc are simply the ways society and youth in particular functions. There is nothing new under the sun, and you can be sure that most people at your age also feel as if they were being betrayed, snubbed and let down by their peers.
Over time - make sure - you will find your own ways of defending yourself, of being stronger, of being more impervious to these things, of not taking them too seriously. And even more important than that: as long as you keep doing what you think is right for you, you will eventually find people who are on the same wavelength as yourself, and you will certainly feel no longer like a fish out of water, or the Ugly Duckling, who was in fact a swam.