Yeah, she was a little more uptight in the first one, when she was still with the coven.
And I'm just annoyed by books where the only characterization for the guys is wangst+yayblood+screwmenow or wangst+UBERFLEXIAMSUPERALPHAMAN+screwmenow, with an added dose of uber-perfection on either part, and where the only characterization for the girls is spitfire!Sue or uberperfect!Sue or Too Stupid To Live (see: Bella).