[She's not doing it for Elena; she's not even doing it entirely for Dean, but just as much for herself, because it was Elena's crimes at the heart of her graduation, a decision that revenge would only be more painful, more pointless. And if she won't go for the throat, Anya refuses to let herself strike at all, refuses even small, tempting pettiness. She can't be friendly, but she can be helpful, nodding once crisply in return.]
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Good luck.