In Breaking Dawn, Irina betrays the Cullens by telling the Volturi about Renesmee, Edward and Bella's half-vampire daughter. She does this because in New Moon, Irina's mate, Laurent was going to kill Bella. Jacob and his werewolf pack intervene and kill Laurent first. Irina is still upset about this in Breaking Dawn, so she betrays them.
In the Twilight series, the character who betrays the Cullens is Bella's friend, Jacob Black, when he reveals the Cullens' secret of being vampires to the Volturi in an attempt to protect Bella and her daughter, Renesmee.
Her name is Irina, and she is part of the Denalicoven. She is Tanya and Kate's sister. In Breaking Dawn, she is the one who betrays the Cullens and turns them in to the Volturi. Later in the book, the Volturi (mainly Caius) decide to kill Irina, and they do so.Hope that helped!
No one betrays anyone
Judas iscariot betrays Jesus
When someone betrays you, how do you react.
Someone who betrays their country is called a traitor
9 cullens
peter petigrew betrays the potters allong with mr.lovegood and mundungs fletcher
The name of the person that betrays you is Major Shepard.
Irina did betray the Cullens by telling the Voluri that the Cullens had a vampire child.
No the cullens can't sleep.
A person who betrays his country - in other words: commits treason - is called a traitor.
There are 5 cullens and 2 Hales