Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Highly disappointing

I thought this would be a good summertime read. Initially it was. The characters are fleshed out well and their lives intersect in often interesting ways. However, the end of the book spoiled it. It descended into melodrama and several of the characters' personalities suddenly evolved in very unrealistic ways. Rather than thinking it was a nice light read, at the end of the book I was angry that I had been led along to find silly movie-of-the-week climaxes.