Quote the observations Elizabeth made about how Darcy had changed?

"Elizabeth said nothing, but it gratified her exceedingly; the compliment must be all for herself. Her astonishment, however, was extreme, and continually was she repeating, "Why is he so altered? From what can it proceed? It cannot be for _me_--it cannot be for _my_ sake that his manners are thus softened. My reproofs at Hunsford could not work such a change as this. It is impossible that he should still love me."

"Elizabeth excused herself as well as she could; said that she had liked him better when they had met in Kent than before, and that she had never seen him so pleasant as this morning."