Back stabbing is betrayal like you said, you can be betrayed by the people you thought loves you and understands you or your close friends, even the ones you trust.

It's a nice topic you have there @heskay

Backstabbing can come as a result of selfishness, jealousy, envy, trusting blindly and so on, it could also be as a result of mistrust.

Whatever reason it maybe, backstabbing can really cause a mayhem.