On p. 56-7, I found it interesting how Robert Parker "presented himself in the role of the plain-speaking man of honour", and that "reticence as a rhetorical device [during courtship] had wide currency".

It seems obvious to me that JA agreed that reticence was a sign of love, not just a rhetorical device: Mr. Darcy saying "A man who felt less, might [have said more]", and Mr. Knightley's "I cannot make speeches...If I loved you less, I might be able to talk about it more".