I know what you mean there was a lot of stuff in Twilight that I though 'what the hell was that' about...I mean Spider Monkey!!!...as if Edward would ever say that.
At the same time I can appriciate that in order to get the story in to a movie it has to be adapted otherwise the movie would have to be like12 hours long! LOL
It also helps that Robert Pattinson is very easy on the eye! LOL