Sure you can. It's called "delusion of grandeur." Anyone or anything who does not conform to this delusion is either painted as a villain or discarded entirely. So you see, she isn't behaving poorly in her own eyes; she's responding with appropriate assertiveness to someone she sees as a villain.

These types of people are often extremely sensitive, such that they can't handle anything which contradicts their worldview. I often respond to them by contradicting their worldview at every opportunity because it amuses me.