Who said "I must confess myself surprised by his behavior to you."?

This quote is attributed to Mr. Darcy.

I must confess myself surprised by his behavior to you. - Mr. Darcy

"I must confess myself surprised by his behavior to you."

Mr. Darcy

"It is a truth universally acknowledged that a single man in possession of a good fortune must be in want of a wife."

"I could easily forgive his pride if he had not mortified mine."

"You have bewitched me, body and soul."

"I am not one of those gentlemen who can be supposed to please women."