So… you’ve got a crush. Or a situationship. Or maybe you’re just trying to figure out why that one date felt like a cosmic disaster. Welcome to the magical world of astrological compatibility — or, as we like to call it, cosmic chemistry.
Before you spiral through a rabbit hole of birth charts and star-crossed memes, here are six beginner-friendly things to peek at in your chart (and maybe theirs, if you’re lucky enough to have that info) to see if the stars are feeling the vibes.
1. Your 7th House: Long-Term Partner Energy
Think of your 7th house as your “relationship radar.” It’s the part of your chart that shows what kind of person you’re drawn to for serious, long-term commitment. To find it, look for the sign that rules the Descendant (the cusp of the 7th house) — that’s the vibe you unconsciously seek in a partner.
Someone’s sun, moon, Venus, or Mars falling into your 7th house sign? That’s usually a sign of mutual fascination and partnership potential. It might not scream sparks immediately, but it could absolutely be your “marry me in six months” person.
2. Your 5th House: The Flirt Zone
This is your fun and flirty house. Your 5th house is where dating, romance, and creative connection live. It tells you what kind of energy lights you up when it comes to falling in love — and what kind of people give you butterflies.
If someone’s chart activates your 5th house (especially with their Venus or Mars), there’s usually a fun, chemistry-filled connection. Think: “I just met them, but it feels like a rom-com montage” kind of vibe. It’s not always built to last, but it’s almost always exciting.
3. The Moon: Emotional Vibes + Feeling Seen
Your moon sign is your inner world — how you feel things, how you nurture others (and want to be nurtured), and what makes you feel safe. When it comes to compatibility, this is major. It’s less about sparks and more about emotional resonance.
Moon-to-moon harmony between two people = deep, comforting, “you just get me” energy. If your moons are in signs that flow together (like water + water, or earth + water), you’ll likely feel emotionally in sync. And if they clash? You might feel like you’re always on different emotional wavelengths, no matter how strong the attraction is.
4. Venus & Mars: Crushes, Kisses, and Chemistry
Want to know your love language? Look at Venus. Curious how you flirt or pursue someone? That’s Mars. Together, these two planets show how you express love and desire, and what turns you on.
If your Venus and their Mars (or vice versa) are in sync, there’s usually an easy spark. You just get each other’s vibe. But even if they’re not, don’t panic — it just means your styles might be a little different. Think “love notes vs. spicy texts.” Still cute, just in different fonts.
5. Mercury: Communication Is the Real Love Language
Hot take: Mercury matters just as much as Venus when it comes to dating. This planet rules how we talk, text, process, and listen. You could have insane chemistry with someone, but if you constantly misunderstand each other? Frustration city.
If your Mercurys are in compatible signs (like both in air signs, or both in earth), convos usually flow. If not, that doesn’t mean you’re doomed — just that you might need to be extra clear (and patient) when you’re talking about feelings or expectations.
6. The 8th House: Intimacy, Trust, and Taboo Stuff
The 8th house is the deep end of the pool. It’s where intimacy lives — not just sex, but also vulnerability, trust, and emotional transformation. If someone’s planets land here in your chart, you’ll probably feel it in your gut.
Sometimes this energy is magnetic — like, “I can’t stop thinking about them,” intense. But it can also feel overwhelming or a little too much, too fast. The key? Balance. Check in with yourself: does this feel like genuine closeness… or emotional chaos?