Board Thread:New on Sword Art Online Wiki/@comment-26464648-20150604212031/@comment-75.83.183.241-20151003052315

I think you mean "skittish", as in jumpy and high-strung. But from what is shown of her, I don't think Silica qualifies as such normally. She only acts like that around Kirito, due to her crush/hero-worship where he's concerned.