Types of Love
Sternberg's Triangular Theory of Love
Sternberg's triangular theory is one of the most widely taught models of love in social psychology. It proposes that love is made up of three core components, and the presence or absence of each one defines what type of love you're experiencing.
The three components:
- Intimacy refers to feelings of closeness, warmth, and emotional connectedness. Think of it as the bonding element of a relationship.
- Passion involves the drives linked to physical attraction, romance, and sexual desire. It's the "heat" of a relationship.
- Commitment has two layers: the short-term decision to love someone, and the long-term dedication to sustaining that love over time.
By combining these three components, Sternberg identified eight types of love:
- Non-love: none of the three components are present (casual acquaintances)
- Liking: intimacy only (a genuine friendship with no romantic or committed element)
- Infatuation: passion only (an intense crush where you barely know the person)
- Empty love: commitment only (a couple staying together out of obligation, with no closeness or spark)
- Romantic love: intimacy + passion (a new relationship that feels deeply connected and exciting, but hasn't yet built long-term commitment)
- Companionate love: intimacy + commitment (a long-term partnership or deep friendship where passion has faded)
- Fatuous love: passion + commitment (a whirlwind engagement where two people commit fast based on attraction alone, without real emotional depth)
- Consummate love: all three components present (the "ideal" form of love, though Sternberg noted it's hard to maintain over time)
The key takeaway is that most relationships shift between these types. A couple might start with infatuation, move into romantic love, and eventually settle into companionate love. That progression is normal, not a sign of failure.
Passionate and Companionate Love
These two categories capture a fundamental distinction in how love is experienced.
Passionate love is intense, emotionally charged, and often a bit destabilizing. It shows up early in romantic relationships and comes with real physiological arousal: increased heart rate, sweating, even loss of appetite. People in passionate love tend to idealize their partner and experience obsessive, intrusive thinking about them. The catch is that passionate love almost always declines in intensity over time, typically within the first one to two years of a relationship.
Companionate love is quieter but more durable. It's built on deep affection, mutual understanding, trust, and commitment. You see it in long-term marriages, lifelong friendships, and family bonds. Companionate love doesn't replace passionate love in a zero-sum way; in healthy long-term relationships, the two can coexist, though the balance shifts toward companionate love as the relationship matures.
A common exam question asks you to distinguish these two. The simplest way: passionate love is about intensity, companionate love is about stability.
Romantic Love and Limerence
Romantic love blends elements of both passionate and companionate love. It involves strong emotional and physical attraction alongside a desire for long-term partnership. It's what most people mean when they talk about "falling in love."
Limerence is a more specific and extreme concept, introduced by psychologist Dorothy Tennov. It describes an involuntary state of intense romantic obsession characterized by:
- Intrusive, near-constant thoughts about the other person
- Heightened sensitivity to the other person's actions (reading into every text, every glance)
- A desperate need for reciprocation
- Mood swings that depend on perceived signs of interest or rejection
- Physical symptoms like loss of appetite or difficulty sleeping
Limerence is temporary. It typically lasts anywhere from a few months to a few years. From there, it either evolves into a more stable attachment or fades entirely. It's worth noting that limerence is not the same as love; it's closer to an addictive emotional state, and it can occur even when a real relationship doesn't exist.
Relationship Dynamics
Attachment Styles in Adult Relationships
Attachment theory, originally developed by Bowlby and Ainsworth to describe infant-caregiver bonds, has been extended to adult romantic relationships. The core idea is that the attachment patterns you developed as a child shape how you approach intimacy, trust, and conflict as an adult.
There are four main adult attachment styles:
- Secure: comfortable with both closeness and independence. These individuals trust their partners, communicate openly, and handle conflict well. Roughly 55-60% of adults fall into this category.
- Anxious-preoccupied: crave extreme closeness and worry constantly about abandonment. They tend to be hypervigilant about their partner's mood and may come across as "clingy."
- Dismissive-avoidant: prioritize self-reliance and feel uncomfortable with emotional vulnerability. They may pull away when a partner seeks closeness.
- Fearful-avoidant: want intimacy but are deeply afraid of getting hurt. This creates a push-pull dynamic where they alternate between seeking and avoiding closeness.
Your attachment style influences several relationship outcomes:
- How you communicate (especially during disagreements)
- How you handle conflict (approach vs. withdraw)
- How much trust and emotional closeness you're comfortable with
- Overall relationship satisfaction and how long relationships tend to last
One important nuance: attachment styles aren't permanent. They can shift through new relationship experiences, personal growth, or therapy.
Intimacy and Commitment in Relationships
Intimacy is the emotional core of a close relationship. It develops through self-disclosure (sharing personal thoughts and feelings), shared experiences, and the gradual building of trust. Intimacy requires vulnerability, which is why it takes time and feels risky. Partners who practice open communication and respond to each other with empathy tend to build deeper intimacy.
Commitment is the cognitive and emotional decision to stay in a relationship and work to maintain it. Sternberg distinguished between short-term commitment (the decision that you love this person) and long-term commitment (the ongoing effort to sustain the relationship through challenges).
What determines how committed someone feels? The Investment Model, developed by Caryl Rusbult, identifies three key factors:
- Satisfaction: How happy are you in the relationship?
- Quality of alternatives: Do you perceive better options outside the relationship (other potential partners, or being single)?
- Investment size: How much have you put into this relationship (time, emotional energy, shared finances, mutual friendships)?
Higher satisfaction, fewer perceived alternatives, and greater investment all predict stronger commitment.
Maintaining a relationship over time takes active effort. Research points to several behaviors that help:
- Expressing affection and appreciation regularly
- Supporting your partner's personal goals and growth
- Sharing activities, routines, and rituals that reinforce the bond
- Addressing conflicts constructively rather than avoiding or escalating them
The pattern across all of this research is consistent: relationships don't sustain themselves on initial attraction. They require ongoing investment in both intimacy and commitment.