One of the things you have to keep in mind not only with writing, but with any kind of entertainment, is that there is no possible way to please everyone. Every person can't possibly like everything--every book, song, movie, TV show, and so on. We all have different opinions. Everyone has a favorite color or a favorite food, right? You may not be able to understand how someone could love something that you hate (like how I will never understand why some people like Fifty Shades of Grey...), or vice versa. The bottom line is that while there will usually be an audience for everything, that audience isn't made up of everyone.
Say you went to a movie with your friend and you loved it, but she hated it. You both saw the same movie, right? But the way it impacted each of you was completely different. Or if you go to a comedy show, and everyone in the room laughs at a particular joke except for you. Does that mean the joke isn't funny? Well, that depends on how you look at it. To you, it isn't, but to several other people, it is. It's not something that can be clearly defined.
We always say that people are entitled to their opinions. Everyone has specific things that they like. You may like a certain genre of books or movies, and that's what you stick to. Or you may like a little bit of everything. What we like can be something broad like genre, or it can be on a smaller scale, like a particular writing style or point of view.
I think the thing that stings with getting a bad review is that you wish this person never read your piece in the first place. We always wish that our books would only find that target audience, but it doesn't always happen. Ideally, you would want every person who reads your work to love it, but even if they like your genre or other aspects that make up your book, sometimes it still just doesn't work out. It doesn't mean that your book is bad--it just wasn't right for that person.
I don't think I would look at bad reviews if/when I got them. For one, I just know I don't have the thick skin for it. But also, there really isn't a point. You can't exactly change a book once it's published just to please more people. You wrote what you wrote. Hopefully your book will find those people who will enjoy it.
How do you feel about reviews? Do you read the bad ones?