I love the kind of Puss in Boots dynamics Lapis has going.
The Japanese have a good understanding of these things. I think it was in FLCL where I first found a detailed explanation; it was one of the girls who, at some point in the story, told the others why she loved Puss in Boots: "The cat keeps telling lies. He starts making up lies at the beginning of the tale, and then he must make up more and more lies so that his previous lies won't be exposed. Just like that the lies keep piling up -- bigger and bigger and even bigger lies! And when it looks like things have reached the point where it's impossible to keep up the front and the mountain of lies is going to crumble... the cat does something that turns all the lies into truths! And he lives happily ever after."
Looks to me like Lapis will have to make an existential choice: be a villainess who just pretended to be a good person (and break Natori's heart) or turn the lies into truths and become a paragon of virtue for realsies (and win Natori's love). Remember Puss in Boots, Lapis!