What image of Mr. Darcy's attitude toward Elizabeth is Austen establishing when she writes ''he certainly looked at her a great deal, but the expression of that look was disputable.

Darcy was determined not to like Elizabeth, but she proved to be such a puzzle to him that he couldn't keep his eyes off of her. His constant gaze and disputable expression illustrate his confusion. He's never met a girl like Elizabeth, and he doesn't know what to make of her.