That's assuming she's not rejecting anyone and moderately flirts with other people (not clingy, but not completely detached either).
It's not like it applies to me.
Not at all.
Most Helpful Guy
I know a lot of women are clueless when guys are hitting on them. Often the girl gets shy and the guy then misreads her body language as her not liking him. Or the guy is shy, so the girl thinks he doesn't like her. It is common for both guys and girls to completely misread the other person.
Women get approached a lot more than they realize, but if they fail to let the guy know they are interested the guy is unlikely to risk rejection and actually ask her out. Since few guys end up feeling comfortable enough to ask her out, women don't realize that the last 10 guys she talked to were all interested. That is assuming the girl even noticed the guy was hitting on her to begin with.
Guys your age are terrible approaching women. They are overly worried about rejection, and most guys haven't gotten much advice on how to approach a girl. If they have, it was most likely bad advice.1