The correct answer to this open question is the following.
Love has been the constant topic of different authors since humans are on planet earth. There are many concepts, visions, aspirations, and classifications of love, and their implications.
In the case of the perspective of Soble, he has found two basic divisions or types of love, regarding how people appreciate or express their feelings to another person.
Soble classifies love into two types. The first, he called e-type love. Here, the attraction is physical, basically. The appearance or the looks of the individual attracts or captives another individual. We could say that Soble is referring to sexual attraction.
On the other hand, the second classification is a-type love, where an individual goes beyond looks and feels an attraction to the way the other person acts, thinks, and is. Attractive traits could be, the moral of the person, its conduct, its values,