What is a Best Friend?

They are shining
Priceless jewels
Tell them anything
Tell it all
They shoot down enemies
With insults like rifles
In video games or reality
Whatever that will kill us

They are familiar
Been there before
Just one, steadfast singular
Or add some more
They fabricate stories
Make us laugh or bristle
Fearless or sordid
Both talk, none listen

They are everything
Pacifist and violent
Unending fighting and forgiving
That is a best friend