Some people are single because of bad luck, others just got out of bad relationships. And then there are some people who have absolutely no clue that they're the problem. You would think at a certain point that these folks would consider that if everyone they go out on a date with is crazy, perhaps they are the ones who are insane. But, as we all know, self-delusion is a powerful force. Many of us don't have the confidence to tell these people in our lives that they are the primary reason for t…