Must be either:
a) sarcastic wolf saying good bye with a wink?
b) a very witty wolf trying to save herself with sacrifice (hoping we would change our votes to save her for her "courage")?
c) someone wishing to quit the play / being annoyed about it?
I don't like this self vote at all. You can understand them in games where an ordo tries to save a gifted (someone s/he believes is one) in a tight situation. But here it just makes me kind of suspecting this all as a masquerade - although she mentioned about her wish to kill herself earlier...
Baffling.
EDIT: d) a grand plan of a suicidal wolf?