Sooooo, recap: Blake somehow loses control of herself because of her mask; attacks Yang and puts her in a critical state; Yang understands what is going on with Blake, removes and destroys the mask, to free Blake; Yang begins to fade away due to blood loss while Blake is distracted by Ruby's call; next we know it's a few days/ weeks latter and Yang has recovered; Blake has not been punished or suffered any repercussions due to her actions; Yang is sorting out her feelings, from the betrayal and near death experience; Yang chooses to forgive Blake in her own special way, having fun at Blake's expense.