Why do we need friends

Why do we need friends
    Those are worse than enemies
Ready to put a dagger on your back
    And waiting to put your happiness in jack.
 
Using sugar coated words to impress people
   they are the world's best crafty creatures
Making the people believe they are humble
   conspiring,bitching and being selfish are their salient features

In a group,If she is female
    she will try enacting to be a godmother
on the contrary if he is male
    well.. they always bully their brother

Its the same gender friendship that hurts
    if befriended with such loser soul
But luckily, if of opposite sex
    they pretend like angel to you, which will be their ultimate goal

one thing but is totally sure
    they will make your life pathetic and sour
You will not realize whats wrong or right
    they are more dangerous than a venomous snake bite

A snake bite is physical pain
    that you can recover and come back alive in long run
But these filthy mortals play with your emotions
    for which there is no remedy that can be done

They leave a dark scar in your life
    which takes a very long time to fade
It makes you loose your faith in friends
    you start scrutinizing all with the same blade.

So I say, So I state,everyone's life is a saga
    Being alone and loving self importance is the best Mantra
If this is the sour outcome we always get
    Why do we need friends,or better 

Do we really need such friends??