The Wandering Star - Spencer Reid

When two stars are too close and one of them explodes, it can condemn the other star to wander without trajectory in the universe. They are called wandering stars.

She does not trust people, she's used to work alone and be by herself

But as she joins the BAU she'll have to work on that and accomodate to her new team.

When she finaly allows herself to care about her coworkers. She realizes how far she is ready to go in order to protect them.

The rage that consumes her is willing to burn the World down for him