Reviews are a critical part of a novelist's life. We get them, we obsess over them, and we need them.
I mean, I read every one that I see. Every one. Even the ones that hurt-- and oh lord, do some of them hurt. But I see that as a necessary thing. The hurtful, rip-the-bandaid-off aspect of the bad reviews are part of the process. It's part of understanding that you're never going to please everyone.
Remember: even the great classics, even your most favorite, beloved books have 1-star reviews on Amazon.
But I want to talk to the readers out there: remember that reviews are YOUR tool. If you have a book you love, a writer you adore, then the best thing you can do is get on Amazon, Goodreads and anywhere else you can go and SCREAM IT TO THE HILLTOPS that you love that book. You will make that writer's day.
So go do that. It can be for one of mine, if you're so inclined, or someone else. There are plenty of worthy writers who need a bit of your love. So go give some, because it doesn't cost you anything. Love is a self-replenishing commodity, spread it around.