The Outcast

When Wynter Ash, an Immortal finds out her boyfriend has been using her to cheat on his wife, she breaks up with him. Quentin Lyle, her ex-boyfriend, is angry at this for no one breaks up with him, HE breaks up with THEM. He wasn't going to let her get away with that, so he went to the court, claimed she had done wrong by him and his family and sentenced her to the ceremony of Outcasts.
No matter how much Wynter protested the Judge didn't care. They don't look at the facts in her community. Whoever was of higher social rank was usually deemed innocent.
The next day Wynter was dragged to a chamber in which they put her through the torturous ceremony of someone forcefully entering her mind and body, ripping out a part of who she was by stripping her of her immortality.
She was then forced to suffer without food, water or care for 3 days in a cell before the Elder Immortals chanted a few words and a burning pain appeared on the back of her neck. She knew there would be a tattoo there claiming her as an Outcast.
She was then assigned to work as a slave for the rest of her mortal life at Quentin's house as punishment for her actions. They thought her too weak to escape so they didn't bother restraints as they seated her in the back of the van. She managed to discretely open the door before jumping out and running.