"Elizabeth feeling all the more than common awkwardness and anxiety of his situation, now forced herself to speak; and immediately, though not very fluently, gave him to understand, that her sentiments had undergone so material a change, since the period to which he alluded, as to make her receive with gratitude and pleasure, his present assurances. The happiness which this reply produced, was such as he had probably never felt before; and he expressed himself on the occasion as sensibly and as warmly as a man violently is love can be supposed to do" (280).

I'm glad that Darcy proposed again. I think that this time was much better than the last two Elizabeth had received. It was less wordy and more emotional than ever, and was right to the point. Putting aside all of the stupid words of love and just getting out the message that he wants to be with her is so much better. This is how it should be for Darcy and Elizabeth, because they're both too awkward to talk too much about love. Elizabeth gets shy and Darcy gets scared, so a simply, easy proposal was better.

"'I know that you could be neither happy nor respectable, unless you truly esteemed your husband; unless you looked up to him as a superior. Your lively talents would place you in the greatest danger in an unequal marriage. You could scarcely escape discredit and misery. My child, let me not have the grief of seeing you unable to respect your neighbor in life" (288-289).

Mr. Bennet knows how Lizzy is smart and playful, and having a husband who she looked down on or thought was dumber or boring would not make her happy in life, even if she was rich. He believes that she would hate her life with a partner like that. That is why he implies that she should be careful in selecting Mr. Darcy as a husband. He even goes as far as to imply that he is unhappy with his partner by the italicized "you" when talking about not being able to respect her partner. He is basically saying that he can not respect Mrs. Bennet, which was obvious throughout the entire text, and that he is unhappy and would hate to have her be equally as unhappy. Although, he may just be implying that he would care less if his other, less valued daughters were to marry badly, such as Lydia with Wickham.