She is somewhat insane, according to Kendall in "Big Time Party". While she has been implied to be a good actress, she herself has admitted how she had to go to 32 auditions before landing a role probably due to her deep emotional investment into her characters and sometimes extreme measures such as learning martial arts and using it during audition.
At first, Camille seems to be a bit crazy because she tends to slap or kiss someone randomly when practicing for an audition.
Fawne and James' relationship immediately fell apart when one day Fawne caught James kissing his ex-girlfriend, Cassie outside of their apartment. Kendall made a vow to himself to never date anyone in the industry, and that really does mean anyone: actors, directors, crew, anyone associated with the business at all.
James and Fawne are both tore apart by the sudden break. A average boy band who just released their second album, and already working on the third. When he signs on for his next project with CP Entertainment, however, that vow goes straight out the window.
When she and James auditioned for a role on the fictitious "Witches of Rodeo Drive" (a parody of Disney sitcom Wizards of Waverly Place) she arrived dressed in costume, packed with props, and wired herself with explosives as part of a trick to try to land the part, which she did not get after blowing up the casting director's office.