It is said that most girls lack the sense of secuirty, which may lead to various unbearable behaviours, like trace her boyfriends' call records or require a curfew. It is also said that girls who lack the sense of security should enhance their inner self, they should be more independent. But I think a good relationship should be able to cure each other rather than encourage self-cure. Nobody is perfect, a good relationship means one plus one is more than just two.