"The ignorant regard this as indecent, but it is not a teaching that encourages lust and leads people to desire. In reality it is the marvellous art of cultivating life. Su Nü miao lun, Ming Dynasty (1368–1644)
So since inferiority is definitional to the female gender, then inferiority can't be seen as simple "inferiority" or "worthlessness", but as the "female qualification"; that is, the greater her inferiority, the greater and more superior the woman (to a su
So the person who loves loves the loved person's marvelous & superior qualities, so it's the inferior that loves the superior, and the unidirectionality of love is determined by the inferiority and superiority of the parties. The inferior loves the su