Backstabbing Coward

Someone who pretends to be your friend, but will stab you in the back when given the opportunity. Then when you confront them about it they run away and refuse to explain themselves.

Cory: Matt I thought we were friends!?Why would you go to the supervisor to get me in trouble when the issue could of easily been resolved between us two?!

Matt: I don't want to talk about it. Leave me alone, I don't want to talk to you!

Cory: Wow you are the definition of a Backstabbing Coward!!