]she doesn't like him, but I do think she is very amused by him.

Yes, of course she is. She confessed to Charlotte that she could forgive him ,hadn't he slighted her:

"His pride," said Miss Lucas, "does not offend me so much as pride often does, because there is an excuse for it. One cannot wonder that so very fine a young man, with family, fortune, everything in his favour, should think highly of himself. If I may so express it, he has a right to be proud."

"That is very true," replied Elizabeth, "and I could easily forgive his pride, if he had not mortified mine."