Possum makes a really good point. If it is a romantic situation you seek out; um, have you considered an online hook-up site? Not something like POP or Craigslist which are basically one night stand sex sites but something more legitimate like eHarmony (I'm serious) or even matchup. I know of countless people these days who have met their longterm partners and even spouses this way. There is even one (I can't recall the name) for people with mental health problems.

The point tho is to get yourself out there. And, in my personal opinion, a bar is not the place to do it.