The Girl Code

When it comes to teenage girls friendships there are a set of rules you must adhere to, these are grouped together as one code, otherwise known as the girl code.
Youve heard of it, i know you have.
And because youve heard of it you know it consists of some rules that are easy like;

"You must tell a girl if she has lipstick on her teeth"
"You must tell a girl if her skirt is tucked into her underwear"
"If your friend hates someone, you do too"

But then there are harder ones;
"Friends Exs are off limits"
"Friends crushes are off limits"
"Friends Siblings are off limits"

When it comes to matters of the heart, whats a stupid code to stand in the way?