My wife is reading a book I don't like.
I'm confused. Does the book your wife reading have anything to do with you?
No, but I still don't like it either way.
It's fine to dislike something that your wife likes, as long as you don't make a fuss about it. You should just keep your opinion on the book to yourself and allow her to enjoy the thing that she does.
I can't take it anymore! She makes my life hell with this book and it's time I put an end to it. I should just burn it.
You really shouldn't burn her book. You don't have to be excited about it or even like it. You just have to let your wife have her own things to like.