Final answer:
The five love languages by Gary Chapman are Words of Affirmation, Acts of Service, Receiving Gifts, Quality Time, and Physical Touch. According to Sternberg's triangular theory, these can contrast with types of relationships like companionate love.
Step-by-step explanation:
According to Gary Chapman's book The 5 Love Languages, the five ways to express and experience love (the "love languages") are: Words of Affirmation, Acts of Service, Receiving Gifts, Quality Time, and Physical Touch. Each person has a primary love language that speaks more deeply to them than the other four. Chapman's theory suggests that understanding and utilizing these love languages can help to improve and strengthen relationships.
By contrast, Sternberg's triangular theory of love identifies intimacy, passion, and commitment as the components of love, combining in different ways to form various types of relationships. For example, a relationship with intimacy and commitment but without passion might be called companionate love, which is characteristic of close friendships and family relationships.