I have a friend ( recent friend because we are lab partners) that is a bit like you though she doesn't hate twilight. And the casting isn't what ruined it for her. She's a Jacob fan. And she just kind of flopped so yeah but she's alright with it.
Me, oh I love Twilight still a lot. It isn't going to (and God forbid it to) loosen for me. I'm still for Dream Team but the movie was really good despite it all.