Xiu was baffled to see how Nora was excited over a matter that had nothing to do with her in the first place. The box belonged to Destiny and now the box was hers since she was taking responsibility for Destiny's life. But in all that Nora had no share whatsoever then why did she look like she just solved the biggest mystery of her life?
However, Xiu didn't point out her over-enthusiasm solely because seeing Nora behaving like herself after crying over God knows what made her calm down and less worried about her. Besides, Xiu knew that she would have acted exactly like Nora herself. So, as the 'pot' she couldn't just call the 'kettle' black.