Good post, I totally relate to this. When I'm with others, I've basically given up. I feel like they'll never see me -- whatever they need from me I can't give them, what I'm capable of giving them they won't want. They're only looking at the surface, and if my life doesn't parallel theirs completely -- I don't have kids but they do, I went to college but they didn't, I'm married but they're not, I was a humanities major but they're a mathematician, or WHATEVAH -- it ain't going to work. No common ground. And I hate being judged by people who are definitely not superior to me. Sometimes I wonder if I really feel like I'm superior to them? Do I have a contempt problem? Or is that just the way I mask my fear of their rejection? Which is a foregone conclusion. For me it's total helpless depression about social interaction. I can't see any way to change it, and I'm so tired of trying to fit in and engage with others.

Every now and then I'll meet someone who really intrigues me, and then interaction is natural rather than painful. But it's rare.

So yep, you're not alone!