The full breakdown of the 3 ingredients, how to spot the one you’re missing, and how to get it back.

Love isn’t one single thing. A psychologist called Robert Sternberg studied it for years and found it’s built from three separate parts. Every relationship runs on some mix of them, and that mix tells you what kind of love you’re really in.

Here are the three pieces.

Closeness (the intimacy) This is the friendship sitting under the romance. Feeling safe with them. Telling them the things you don’t tell anyone else. The sense that they really know you, and you really know them.

Passion (the spark) This is the pull. The attraction, the wanting, the stomach-flip. It shows up fast at the start and asks for nothing back. It’s also the first piece to fade.

Commitment (the choice) This is the decision part. Choosing them, then choosing them again, even on the days it would be easier to walk away. It builds slowly, and it holds.

Your mix is the whole story Which of these you have right now tells you what kind of love you’re in. Sternberg mapped out the combinations.

Only passion: infatuation. It runs hot and burns out.

Only closeness: a friendship. Safe and warm, with the romance missing.

Closeness and commitment, no passion: companionate love. Where a lot of long relationships land once the spark dims.

Passion and commitment, no real closeness: the whirlwind. Quick to commit, slow to truly know each other.

All three at once: consummate love. The rare, full kind, and the one that lasts.

Quick note. Nearly every long relationship loses a piece at some point. Usually it’s passion, because the spark naturally fades with time. That part is normal.

How to tell which one you’re missing Three questions, one for each piece. Be honest with these.

Closeness: can I be fully myself with them, messy parts and all? Passion: do I still feel pulled toward them, beyond just loving them? Commitment: am I choosing this on purpose, instead of staying out of habit or fear? Wherever you said no, that’s the piece that’s faded.

How to bring it back

If closeness faded, go deeper. Swap logistics for real questions. Tell them something you haven’t said out loud. Get curious about their inner world again, the way you were at the start. Closeness grows through honest, slightly vulnerable conversation, so keep having the talks that actually matter.

If passion faded, break the routine. Do new things together, especially the kind that get your heart racing. Your brain ties that buzz back to your partner. Add touch into the everyday, flirt on purpose, build a little anticipation before you see each other. Passion fades fastest, and it also comes back fastest.

If commitment faded, build the future. Make plans together. Create small rituals that belong only to the two of you. Say out loud that you’re choosing them. Commitment grows every time you invest in a shared tomorrow.

The takeaway When you slide down to two ingredients, it usually just means one piece needs tending. That’s all it is. Pick the one that faded, put a little intention there, and watch it come back. It’s more doable than it feels.