Extrovert in an introverted city

When I first moved to Seattle, I made a conscious effort to go out and socialize with lots of people in the city. Most often at bars, but also at various volunteer events. I quickly noticed that a number of people at bars tend to stand with pods of friends and/or stand by themselves, notice people around them, but rarely and/or never make an effort to say hello to others around them. This I quickly learned to be a sign of the "Seattle freeze". Being the gregarious person I am, I often made an effort to introduce myself to random people who appeared to be open to conversation (anyone not obsessively looking down at their feet or phone). I figured, despite how "closed" everyone appeared to be, they were clearly interested in being in a social environment. So, why not engage them in social dialogue? For several weeks/months, I only encountered a few awkward moments where people weren't willing to engage beyond a simple "hello. how's your night going?". In fact, I actually received an interesting response from most people. "Oh, you're new here, and not afraid to say hello to people in public. You'll do really good in Seattle. We need more people like you." (paraphrasing of course). But, seriously, this was the reaction I received from multiple people. Little did I know this friendly disposition would come to bite me in my gregarious ass over time! ha! Don't get me wrong. I've met some great people and had established several strong friendships in my nearly 4 years here. But, I've also learned that apparently, I'm too forward, too assertive, too socially/self-aware(?) for some people, and have found myself often times feeling as lonely as the awkward nerdy guy sitting at the bar looking down at his shoes (yes, these type of people frequent Seattle bars). What do I mean by lonely? Basically, because I'm one of the few people willing to put myself out there and meet others, I tend to scare the more timid type people away (even guys who may be interested in dating me. gasp!). I never thought being too friendly and secure in ones own self would be considered a turn-off, but I'm starting to think it is indeed a flaw to some guys. Not ready to make any drastic decisions, but beginning to think I'm "damned if I do and damned if I don't" as my folks would say...