Their brother, indeed, was the only one of the party whom she could regard with any complacency. His anxiety for Jane was evident, and his attentions to herself most pleasing, and they prevented her feeling herself so much an intruder as she believed she was considered by the others. She had very little notice from any but him. (Chapter 8)

Lizzy would not see him as a disagreeable person who does not like her. Darcy’s comments at the assembly were not just critical; they were insulting and clearly define Lizzy as someone not worth his attention. Neither at Lucas Lodge nor Netherfield does Darcy ever vent his changed opinion of her as vehemently as he did his distain at the assembly. The attentions you list are none so great to equal or erase his insults. Lizzy is forced to stay in the same house with Darcy and as far as she knows he is forced by etiquette and duty to his host to be more pleasant to her than he normally would be. My response was not to disagree that Lizzy’s view of Darcy is colored by her knowledge he feels she is unworthy but that she has excellent reason to believe it—from his own mouth. Lizzy misunderstands Darcy’s attentions more than once as I outlined in another post but as Kathi pointed out Darcy behaves with so much reserve that his intentions are not obvious to Lizzy as they are to those of us who get a peek into his feelings. :D