Some stand by it.
Live by it.
Won't violate it.
Then, on the other hand, there is them.
Who will violate the unwritten code in a minute?

Will date you ex-lover without a thought to friendship.
Sisters, brothers, cousins, and friends.

We all know someone that has violated the unwritten code.
Quick to advise the unwritten code is old.

Loyalty is a thing of the past.
In today's time, you are lucky if it last.