Instruct: Classify Amazon reviews into positive or negative sentiment
Query: My boyfriend is still my boyfriend thanks to this book.

My summary says it all. I found myself becoming angry about every little thing my boyfriend did, and through this book, came to understand a) why he did the things he did, b)why I reacted the way I did, and c) how those two factors relate. Now, I've learned to change the way I react, and as a result, he's gradually changing the way he acts. He's not even concious that there's been a huge change in the way we relate to each other, but what he does know is that he's happier (and so am I).