How do I identify fake friends in life?

The silent treatment lasted for a week. We used to sit on the same seat with so many words left unsaid.

Identifying fake friends is easy as the points are noticeable and they can be observed with someone's behvaiour.

I know how easy it seems today to remember this. It was a subject of my depression 4 years back.

Has anyone ever worn leather pants? Are they comfortable?

They pretend to be your friend. Your existence doesn't hold any value to them.

They always jump from one friend to another, just for their favours.

Who is someone that inspires you?

Instead of any support they always judge you and gossip behind your back.

It was an unforgettable day. I remember this was the first time when I stood first in a quiz competition.

Even after every small fights and disagreements, the girl always tried to make this bond last. But her bestfriend gave her infinite reasons not to.

Humans have evolved and become hairless and odor free. How do other races learn about evolution since evolution does not apply to them?

You may take this thing lightly. But the people you hang around with, they hold the power to ruin your mental health directly/indirectly.

Now you might be getting why this day of January 2019 is memorable.

They are jealous of you and always compare you with their circumstances.

Why would Joseph Smith say that polygamy was God's law?

She finally gave up and didn't do anything to save it as her friend chose her crush over their friendship.

There was no limit to my happiness that day. I clearly knew to whom I should give this news first. I moved forward to tell her about this. But her reaction was blank.

They behave sweetly in chats or talking to you personally. While in public, they do the exact opposite thing.

Is it right to visit any shrine or tomb in Islam?

The main thing which arises is the need to distance yourself from such people who are wasting your time, emotions and energy. It is better to cut them off, from your life.

The sooner you realise this, the happier you will be.

She ignored my complete existence that day.

Why do companies cull employees during financial downturns without saying so?

The friendship of a decade came to an end on this particular day.

This was one of the major heartbreaks which is now just a topic of immaturity and naive behaviour to laugh upon.

You are always there for them. But when you need them, they are nowhere to be seen.

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They pass taunts disguised as funny comments to belittle you.

I don't completely blame someone else for this but me. As I was the one who got attached and blindly trusted someone.

Now coming to the question,

Why does my best friend call me ugly and act like she’s joking, but today she looked at me and said “I wouldn’t lie to you”? What should I say back to her?

How do I identify fake friends in life?