I think Americans were unable to understand irony until Jon Stewart came along. After he taught them what it was about, they were finally able to appreciate the wonder and the truthiness that is Colbert. He's also my age, an improv actor, and I do so want to be more like him. Like you I can't get him on the "telly" here in the UK so I have to check the internet frequently.
I really enjoyed your posts -- they're extremely complete and touchingly honest, yet I couldn't believe that you'd found such a narrow range of people on the scene.
Even in the short time I've been in two online communities, I've seen a wider range of desires than you mention in your list, and you've been looking for years! I wonder if you're somehow selecting the wrong people to begin with?
Also, check out the famous "Acid test" posting, widely available. I think it's somewhere on this forum, but I know it's here
This posting taught me a lot about why I was being blown off, despite my honest intentions -- I looked too much like the fakes described here. These tests err (very properly) on the side of caution, and I just got caught in the false positives. Maybe you are too.
You might find insights on that post (I did) on how not to act around potential dominant females too.
Best of luck,