what does Mr. frank mean when he says,"she puts me to shame"?

Mr. Frank is in awe of his daughter and how she has handled the whole ordeal. In many ways she has grown into a young insightful woman before his eyes. There is also a sense of failure that he could not protect such a special daughter in the end.

Mr. Frank is in awe of his daughter and how she has handled the whole ordeal. In many ways she has grown into a young insightful woman before his eyes. There is also a sense of failure that he could not protect such a special daughter in the end. But she dies.