There are a few unspoken laws that hold the sisterhood together — the ones that don’t need to be written down because every woman instinctively knows them. They’re the foundation of female friendship, the reason your best friend knows exactly what to say when your heart’s in pieces, and why you’ll never let your girl walk into a room looking anything less than her best. Welcome to Girl Code — the unofficial rulebook every woman should live by.
1. Always tell her the truth (especially about her outfit).
It’s simple. If she asks, “Does this look good on me?” — be honest. You’re not helping anyone by letting her step out looking questionable. Deliver it with kindness, of course, but never betray the trust that comes with being her mirror. Girl Code honesty means protecting her image and her confidence. Sometimes that means saying, “Maybe try the other dress,” even when you know it’s her favourite.

2. Never date her ex. Ever.
No amount of justifying makes this okay. Even if he’s suddenly “changed” or “it wasn’t that serious,” the answer is still a hard no. Out of all the people in the world, he’s the one person who should remain permanently off-limits. Because this isn’t just about him — it’s about loyalty. Some boundaries are sacred, and crossing this one says more about you than it ever will about him.
3. Support her when she’s not in the room.
True loyalty isn’t about loud declarations on Instagram or matching friendship bracelets. It’s about standing up for her when she’s not around to defend herself. When someone tries to twist her story or throw shade, shut it down.
4. Don’t compete — collaborate.
The world already pits women against each other often enough; your friendship shouldn’t be another battleground. Her success doesn’t threaten yours. It proves it’s possible. Real queens fix each other’s crowns, not knock them off. When you help your friend win, you’re helping yourself too — because the energy you give out always finds its way back.

5. Check on your strong friends.
You know the one who always has it together? The one everyone runs to for advice, but rarely asks how she’s doing? Yeah, check on her. Strong friends often carry silent battles behind confident smiles. Be the friend who asks how she really is, not just out of habit, but from the heart. Sometimes, “I’m fine” really means “I’m exhausted.” And sometimes, your text or call is the thing that gets her through the day.
6. Keep her secrets safe — always.
If she confides in you, treat her words like they came with a security clearance. No gossip, no “I only told one person,” no accidental slips. Once you break that trust, it’s nearly impossible to rebuild. A true friend is a vault — the kind that doesn’t rattle when shaken.
7. Celebrate her wins like they’re your own.
When she gets the promotion, the engagement, or the apartment with the perfect city view, cheer loudly and sincerely. Don’t let envy dull the joy — it’s not a competition. Pop the champagne, post the selfie, scream her name. Your friend’s glow-up doesn’t take away from yours; it just means the group chat got a little shinier.
8. Be honest about the red flags she’s ignoring.
Love can make even the smartest woman temporarily blind. We’ve all been there. But if you see something that doesn’t sit right — the controlling texts, the subtle disrespect, the way her light dims when he’s around — say something. It’s uncomfortable, yes, but silence is not kindness. Sometimes love means risking a little tension for her peace of mind.
9. Don’t let her go through things alone.
Whether it’s heartbreak, a bad day at work, or a total life meltdown, just show up. Bring snacks, wine, tissues, or all three. You don’t need to fix her problems; you just need to sit with her in them. Friendship isn’t always about advice — sometimes, it’s about presence.
10. Be the friend you’d want to have.
At the heart of it all, Girl Code is about reciprocity — giving the same loyalty, laughter, and love you hope to receive. Be dependable, be kind, be real. Don’t ghost when life gets busy, don’t disappear when things get hard. Show up the way you want others to show up for you. Because genuine friendship is rare, and once you find it, it deserves to be protected like the treasure it is.