Do opposites attract?
Romantic stories love opposites: the planner and the free spirit, the introvert and the extrovert. The research picture is less romantic but more useful for anyone dating.
The short answer
Research on attraction and relationships, including a 2008 meta-analysis by Montoya and colleagues, has often found that people tend to pair with partners who are similar to them in values, attitudes and background, and that perceived similarity is linked to attraction. Evidence that partners with opposite personalities are more attracted or more satisfied is generally weak. For Enneagram types specifically, there is no reliable evidence that any pairing, similar or different, predicts dating success.
Similarity vs complementarity
| Idea | Claim | What research suggests |
|---|---|---|
| Similarity-attraction | We like people who are like us | Frequently supported, especially for values and attitudes |
| Complementarity | Opposites complete each other | Weaker and less consistent support |
| Perceived similarity | Feeling alike matters | Often linked to attraction and satisfaction |
| Type matching | Certain Enneagram types fit best | Not supported by research |
What's actually going on
Opposites can feel exciting early on because differences create novelty. Over time, day-to-day compatibility often depends more on shared values, communication and how conflicts are handled. Differences in personality aren't a problem in themselves; what matters is whether partners understand and respect those differences. A planner and a spontaneous partner can thrive if they negotiate, and struggle if each sees the other's style as a flaw.
What to pay attention to when dating
| Worth noticing | Why it matters | Less useful focus |
|---|---|---|
| Shared core values | Guides big decisions together | Matching personality labels |
| How disagreements are handled | Predicts day-to-day strain | Whether types are "compatible" |
| Respect for differences | Turns contrast into balance | Whether they're the "right" type |
| Emotional responsiveness | Builds trust | Online compatibility charts |
Using the Enneagram in dating sensibly
- Use it to understand your own patterns, such as what you seek in a partner.
- Ask about values and needs directly rather than guessing type.
- Avoid ruling someone out because of their number.
- Notice whether you're attracted to qualities you lack or share.
Dating questions
Do opposites really attract?+−
Research often finds that similarity, especially in values, is more consistently linked to attraction.
Should I date someone with the same Enneagram type?+−
Type isn't a reliable guide. Shared values and communication matter more.
Which Enneagram types are best together?+−
No pairing has been shown to be best; any combination can work.
Can personality differences make a relationship stronger?+−
They can, when partners respect differences and communicate well.
Continue exploring
Explore The Enneagram explained: types, thinking and evidence
Return to the topic hub to browse all guides, questions, comparisons and reflection resources.
Start with the main guide
This guide explains the broader topic before you explore individual questions and concepts.
Understand the key ideas
Explore the concepts connected to this guide.
Communication styles by Enneagram type
How each Enneagram type tends to speak, listen and write: directness, detail, emotional tone and what each listens for.
Read guideEnneagram compatibility myths
Compatibility charts claim some Enneagram types belong together and others don't. Six common myths, why they persist and what actually tends to matter in relationships.
Read guideEnneagram conflict styles and escalation cycles
How each Enneagram type behaves in conflict, what triggers escalation, how certain type pairings create repeating cycles and specific de-escalation moves for each style.
Read guideRelated guides
Continue with practical questions and focused explanations.
Can the Enneagram explain my relationship?
"That's just how they are" feels like an explanation, but it often isn't. How attribution errors distort relationships, what personality can and can't explain.
Read guideCan the Enneagram help with conflict?
Knowing someone's personality can make their behavior feel less personal, which may soften conflict. How that works, where it helps, where it backfires.
Read guideCan the Enneagram predict compatibility?
Dating apps and quizzes promise to match personalities. What research suggests about personality and relationship satisfaction.
Read guideDo Enneagram types affect communication?
Personality influences how talkative, direct and emotionally expressive you are, but context often matters as much. What personality does.
Read guideExplore in daily life
See how these patterns can appear in everyday settings.
Does birth order affect personality?
Firstborns are responsible, youngest children are rebels, or so the theory goes. What large studies suggest about birth order and personality.
Read guideHow friendships form, and why some fade
Proximity, repeated contact, similarity and self-disclosure help explain why some friendships stick and others fade, and how different personality types build.
Read guideCompare related patterns
Explore where related experiences may overlap or differ.
How Enneagram types map to Big Five traits
Some studies have looked at how Enneagram types relate to the Big Five traits. The expected patterns for each type, what the overlap means.
Read guideType vs trait personality models
Personality tests either sort people into types or measure traits on a scale. How categorical and dimensional models differ, what each gets right.
Read guideTake the next step with structured self-reflection
Use the test as a starting point for noticing everyday patterns and deciding what you may want to explore further.
Sources and further reading
- Journal of Social and Personal Relationships (Montoya, Horton & Kirchner, 2008): Is actual similarity necessary for attraction? A meta-analysis of actual and perceived similarity
- The Enneagram Institute: The Nine Enneagram Type Descriptions
- Journal of Clinical Psychology / PubMed: The Enneagram: A systematic review of the literature and directions for future research