Yes, I can see your reasoning - although to me it fits Arias more than Knox, who appears psychologically different to me. I also think IF she is innocent, or even simply wanting to appear innocent, the thinking would be, "If I didn't do the crime, then why can I not show support?". Of course she doesn't take into account that rightly or wrongly, the Kerchers suspect her if they're not outright convinced she took part in the killing.
SMK, it could very well be a combination of all the things both you and I have said.
I think she's trying a little too hard to put up the "Meredith was my dear friend" act, or not-act, however one wants to look at it.
For example, in her posting on her blog, she said something like "until then I will honor and support my murdered friend Meredith."
Well, ok, I can understand that if she Meredith's long-time lover, who the parents suspect of murdering Meredith, but who is actually iinnocent, and who loved Meredith deeply and was her lover and so it is her right to "honor and support" her despite the family's wishes. Or maybe you can substitue and innocent husband or wife. Do you see what I mean? It doesn't make sense for Amanda, she only knew Meredith for a very short time!!
I think, if she just went with how she honestly feels, it would appear more authentic and people wouldn't doubt her authenticity as much. But it is, IMO, all an act, and that's why it feels inauthentic, because you know, those things are easy for other people to sense (when someone is being inauthentic).
She is trying too hard to pretend like she has this very deep connection with Meredith. And, IMO, it's an act - that's why she doesn't get how to react when the parents tell her this. Because it's an act for her. And so she is always going against her true reactions and feelings. And she is, IMO, always trying to think of "ok, so let me put this hat on, and how would someone wearing this hat react?" But then she gets it all wrong. Because it's not coming from her, it's coming from what she
imagines someone wearing that hat would do.
Here is the portion from her blog:
http://www.amandaknox.com/blog/
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