From a girls point of view, if I was 13 again and read the books or watched the movies, I'd probably obsess over it too.
I watched the movie the other night with a bunch of /b/tards with a somewhat open mind since almost every girl I know is into it and it's become a phenomenon of sorts.
It was terrible. But something younger girls swoon over. The idea of being the somewhat an outcast but suddenly being wanted by two 'creatures' and being protected and cherished. It's seriously just a romance novel full of girly wants and desires with sexual tension. The same thing you see a billion times on Fanfiction.net
I've never read the books and I've only seen the first movie but that's enough for me. The movie had horrid acting and I know it's been said a million times, but their vampires look quite feminine and well, just plain gay. It gives this distorted view to girls of what type of guy will sweep them off their feet and how they'll act only for her and protect only her. But then again, I've also heard the books are badly written and pain a selfish view of love.
I know you hate people hating it but because it's become a phenomenon, it's poisoned a majority of girls and others. Only guys willing to please their girlfriends and watch it have seen it but can you imagine that poor guy sitting there in a theater full of girls swooning over a guy who's been photoshopped and graced with bad acting? It's just people reacting to something that's big and they don't like.