what should I do?

I am so picky with relationships, that when an opportunity comes along, I just deny it because there is either no charisma, or I am utterly un-attracted to the guy and feel sick at the thought of kissing him. When I do find a guy that I am attracted to AND can connect to, he either already has a girlfriend, gets one that isnt me, or he isnt interested in me like that. what should I do differently? Is it me?