Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I usually love these, but this one fell flat

Whatever name shes writing under, Krentz's books are among my favorite guilty pleasures. Formulaic - you bet! Do I care - nope! When I want a happy ending with fun verbal sparring, the unconventional heroine, the brooding alpha male, I know I can pick up a Krentz novel and be happy, no matter how many times I've read the story before. Except for this one.SPOILER ALERTIt lost me when I found out that Mattie declared her love for Hugh and begged him to marry her THE DAY HER SISTER BROKE OFF THEIR ENGAGEMENT! Then she gets pissed because he said no. Really? I lost all respect for the character and had no idea why Hugh changed his mind.