Can she be any more stupid just for story purpose ? no.
Here the poor rating I saw at the beginning becomes completely justified: this is just a load of crap (how can she have given up her secret to the dumb Labrador immediately, and to Lennon sooo easily with NO resistance whatsoever and the utterly crappy excuse “I’ll use him”, seriously ?! You can give me all psychological interpretations you want, that will NOT make an interesting story… submissive FL to whom the author, furthermore, gives excuses are utterly boring)