Well, I guess then it comes down to what kinds of people you find yourself attracted to. If there's something about them that's common in all of them, you know? If you find yourself attracted to certain types of people, then that's a good place to start with figuring out what might or might not be either helping or hindering the progress of getting close to someone - ie, if you were attracted to people that deep down you know you're incompatible with, then that would naturally affect whether or not you found yourself involved with anyone or not. I was going to rant more about this kind of thing (such as acting on attractions and not and so on) but then I realized I was pretentiously speaking out of my ass, so I'll spare you that ^_^

As for people being attracted to you, I'm sure there are millions but you've firmly planted your beliefs elsewhere and don't notice them.