I've never "gotten" Tonks either, so I think that's why I appreciate your characterization of her so much. I mean, in the books she's simply supposed to be funny, and then suddently she gets sad about Remus... it was pretty hard for me to wrap my head around her. I think you've done a really great job of balancing her introversion (I mean, she must have some of that hidden in her, to have been so upset in HP6, and to be able to connect with Remus) with her liveliness.