Friends Forever?

When we were younger, we always thought friends are forever right?
We signed off our schoolmates farewell autograph saying that, didn't we?

Why didn't the adults warn us that not all friends are forever?

Once upon a time, there is this person or persons in your life that you shared everything with including your dreams, fear & even love experiences with, you thought to yourself "Yes, I can trust this person, this is my forever friends"

But time is always the best time of all relationship, isn't it?

And why am I suddenly feeling that not all friends are forever? Because I have seen it & been through it myself. Yes it's sad to know that but I'm ok because I have more important things in life to achieve to focus on than some past faded insincere friendship.

I have tried my best, I have put in effort to maintain the friendship. It has come to an end which I no longer want to waste anymore time on it. If both parties or all parties are sincere & keen to maintain the friendship, wouldnt it be everyone's duty to keep strong & going?

Would I regret in the later part of my life for giving it up? I don't know. Maybe I will maybe I would. For now, I just dont wish to see or to know anything about people who don't worth my waking hours.