Friends are the closest relationship of any person in teenage. It would not be wrong if I say that,
"We are dependent on our friends in this stage"
We can share even those things with our friends which we hide from our parents, siblings etc. This thing makes the relationship unique.
But, this relationship of friends is weakest of all relations. As Someone has said,
"Friends are like diamond , once broken; they can never be reunited ."
So, it takes no time to convert friendship into enmity. Friends don't remain friend forever. People change with time. Even a tiny mistake can damage your friendship.
So, it is always advisable to be careful in sharing your secrets with friends because they may become enemies one day. Similarly,.friends are the one who can make fun of our secrets as well. Sk, be careful when it comes to sharing secrets with friends.