Final answer:
Romantic love, defined by passion and intimacy but lacking commitment, is typically experienced in early love relationships and is prevalent during adolescence.
Step-by-step explanation:
The concept in question that involves strong components of sexuality and infatuation, and is often predominant in the early part of a love relationship is referred to as Romantic Love according to Sternberg's triangular theory of love. This type of love is defined by having passion and intimacy, but no commitment. It is typical during adolescence when sexual and emotional awareness becomes more acute and young people begin to explore romantic relationships.
Romantic love can be contrasted with other types of love delineated in Sternberg's theory, such as consummate love which includes intimacy, passion, and commitment. In contrast, infatuation is passion without intimacy or commitment, and companionate love, often found in close friendships and family relationships, consists of intimacy and commitment but lacks passion.
Understanding these different components of love and types of relationships can help individuals navigate their emotional connections with others and better understand the evolution of their relationships over time.