This article explores Sternberg's Triangle theory in the context of relationships. It breaks down the sections of the triangle as they relate to different kinds of love: nonlove, liking, infatuated love, empty love, romantic love, companionate love, fatuous love, an consummate love.
The factor of balance comes into play as the actual shape of any given relationship triangle is a direct reflection of the balance therein. For example, an ideal relationship triangle would be equilateral--all emotional, mental, and physical sides and angles of the relationship are equal within this shape. Overall, I've concluded that communication is the only way to ensure the closest equilateral balance in any relationship. When both parties of a relationship are fully aware of the aspects of their particular triangle harmony is within reach.