Board Thread:General Discussion/@comment-22580009-20131101050444/@comment-22580009-20131101181951

Also, the others do know now. They didn't before but the reason Blake ran off is because she let it slip that she was in the White Fang. So they may not have seen the ears, but they know she is a faunus and former member of WF.

She was wearing the bow in the last part, despite being with a fuanus, after the reveal, and he said she is better without it. It could be she is still hiding or ashamed, or it could simply be that she has gotten so used to it that she wears it even if she thinks she doesn't need it anymore.