Now taking bets on steroid psychosis.
You're probably right. A psychiatrist's comparison of psychotics and neurotics that I remember from many years ago goes, "A neurotic builds castles in the sky; a psychotic lives in them." The term, "a psychotic lives in them" means that, when a psychotic has a delusion, he or she immediately, totally believes it, and is obsessively compelled to act on it just as fast. That might be what happened here.