I personally think this is the case, because girls for boys, often are the existence of a look but can not be. If a boy likes you, he will be able to easily chase you, then he will not cherish you.
Because for the boys are often like to go through a lot of difficulties to get things, will be more cherished easy to get things, both boys and girls will not be easy to care about him. And girls still have to be a little reserved, do not be too good to chase, otherwise it will let the boys think you are so a better chase girls, resulting in misunderstandings between the two people. Girls must know how to raise their own stature so that boys feel that your pendant is through the efforts of the boys to get, rather than casually say two words can be chased into your hands.
After all, even in your own mind, you yourself won't be so cheap and easy to be chased. If you think you're easy to chase yourself, then it's even easier for guys. So, for the relationship aspect, it's best for girls to increase their value and show their capital. You have to tell the boy through your own behavior, you are more than him a suitor, but you prefer her alone, this kind of time can let the boy realize that the original you are so important.
So as a girl must not be too good to be chased, even if you like the boy, even if the two of you two love each other, but who can not guarantee that the future will happen, so that often many times or need to keep the girls have a certain value of their own embodiment, or else once the relationship does not go well, the boys are likely to abandon you.