WTF! What are they talking about?

When for a new rpg campaign you create a character who is open-minded, believes in people, tries to act rationally and doesn't want to hurt anyone.

And after the second adventure you get the feeling that you need to change her. Or replace her with some kind of madman or sociopath.

Aria Ekhart- young, not very pretty, robotics engineer, follower of the Lantern, lover of progress and the fight to stop the decline of humanity.