Do+you+think+Mogget+wants+to+be+in+his+original+form

When Mogget is in his cat form he acts like he wants to help Sabriel but as soon as he was in his origianal form he tried to kill Sabriel. Do you think he would rather be in his cat form and helping Sabriel or in his dead form trying to kill her? It seems to me that he just acts nice until somebody takes of his collar (his binding) and then he's at that person's throat.