In psychology, there are many different theories behind love and attraction between people. One of the basic theories is Sternburg's Triangular Theory: the belief that there are three attributes that can form up to 8 combinations to create love. These three attributes are intimacy (the fondness or compatibility of personalities, similar to the feeling of friendship), commitment (the logical reason to be together with another, similar to betrothal instances), and passion (the physical desire and lust for another). According to Sternburg, a relationship can have any combination of these, or just one, or even none at all. Of course relationships are dynamic, but every relationship is made of a combination.
And so begins our stories of Sternburg's Symphonia and the explorations of the eight different types of relationships.