1. Never get with an ex. Period.
It doesn't matter if she dated him for 3 years or 3 months, getting with an ex is strictly against the girl code of conduct. Is he really worth losing your best friend over? Never.
2. Don't mock her style
We're flattered and all but no girl wants a clone of herself. Stay true to what's original to you and find your own signature style.
3. Don't be man hungry
Your life needs to be more than just men! We love talking about guys, but we can't do it 100 PERCENT of the time. Take interest in other things and she'll love you like no other.
4. Never ditch her
Especially when it comes to boys. If you're on a night out with your bestie don't ditch her for your crush. It's wrong on all levels.
5. Honesty is the best policy
Best friends rely on each other for truth. If she's embarrassing herself, tell her. If she asks how she looks, be honest. As long as you're tactful and sensitive you can't really get mad at your bestie for telling the truth.
6. Don't judge other women
She may look better than you, have more money than you and even have a hotter boyfriend than you BUT that doesn't mean you can talk crap. Jealousy is an ugly trait. Get rid.
7. Don't be negative
Because there's nothing worse than being around a negative Nancy all day.
8. Don't dish dirt
Secrets aren't secrets unless you share them with your BFF. But if she tells you one, you've gotta keep it secret and safe.
9. Comfort
Sometimes girl codes extends outside our circle of friends. If you ever see a crying woman alone it's your duty to help. Women stick together.
10. You're her bodyguard (especially on night's out)
When you're dancing away with your bestie you're sure to come across a lot of random creeps. Besties are the only one's that can ward off weirdos. (Even if you have to pretend to be lovers.)
11. Teeth check
If your girl has crumbs on her face or food in her teeth, TELL HER. Best friends always save each other from potentially embarrassing disasters. You got this.
12. Don't be a hater
Be happy for your BFF, whatever her success. We should never live to envy our friends. Instead consider her your inspiration.
13. Remember, it's all about two way conversations
Friends are always there to help each other through life's dramas, but if you're the kinda friend that talks about herself All. The. Damn. Time. Then it needs to stop. Woman up!
14. Sex talk is SACRED
Anything and everything she says to you about her sex life is never to leave the room. (There's nothing worse than you ex-boyfriend finding out what you really thought of him.)
15. Dumping policy
If your BFF just got dumped, emotional support is required by phone immediately and in person within the next 24hrs. No excuses.
16. Time Of The Month sympathy
Boyfriends? Pfft, they don't have a clue. But our best friends know what we're going through.
17. Never upload crappy photos of them
Never. Ever. Attempt to upload an obviously bad photo of your friend. On any social media. Otherwise, be ready. #DramaAlert
18. Always make sure she gets home safe - dunk or sober
It doesn't matter who's out, if your bestie blacks out early you gotta put her in a taxi and go back with her. The cons of being a true friend. Deal.
19. Don't cuss out her boyfriend
You don't need to like him, but we recommend you don't get involved. That's her job.
20. Reply to all texts
It would be rude not to.
21. Never borrow her clothes and return them ruined
Fake tanning marks, deodorant residue, missing buttons and random rips? Sort it or replace it.
22. Don't talk shit...
... behind her back. Sometimes friends make mistakes but this isn't one of them.
23. You're her support system
If she's feeling down or insecure it's your job to lift her spirits and pick her back up. After all, that's what best friends are for, right?
You might also like:
6 Reasons Everyone Wants To Be Friends With Taylor Swift
WATCH: The ‘Friends’ Reunion We Were All Waiting For Has FINALLY Happened
You're Annoying As Hell But I Still Love You! 30 Things ONLY Sisters Will Understand