??
] I made a note after this passage wondering if this is when Henry begins to fall in love with Catherine. JA seems to be signaling such a thing, and there is no doubt that Henry enjoys Catherine's company. But does he enjoy her or having an audience for his wit and instruction?

I made note one in chapter 10 where Henry replies to Catherine's "Who can ever be tired of Bath?-by saying "Not those who bring such fresh feelings of every sort to it as you do...."

Soon after that they agree upon the country walk. Which actually takes place in chap 14 where my second note is.
Henry is getting curioser and curioser until Eleanor tells him "Miss Morland is not used to your odd ways." -"I shall be most happy to make her better acquainted with them."

This in itself is of some significance, but I find his sister's reply to be even more so. She says
"No doubt; but that is no explanation of the present."