As Alfonso TRIED to explain to Amy, it wasn't about make-up, it was about HER. As she said herself on at least two occasions "If I could get away with it .....". And it's fairly clear that she has absolutely no comprehension of, or care about, how her "getting away with it" COULD have impacted on the camp - three times. As for the lying - I don't think she even knows she's doing it, but other people do know, call her out on it and she still denies it.
Oh dear. Only poor simple Joey bought all of her nonsense, and it's conceivable that it cost him the crown. He'll learn.