It's horrific how awful this movie is. But I can't really say the movie is bad. I've never seen it. Judging the book, it's okay. The writing had it's flaws, and it sounds like a badly written fan-fiction more than a bestseller romance novel.
As for the genre, that's a load of crock. Horror movies are, I 'unno, supposed to scare you? I suppose I would be scared if I had to watch it, but I digress.