So, on this rereading, I was keeping tallies how often one or another thing happens, and now I'm ready to present my results (strictly my own opinion).
First of all, you'll be surprised that the phrase "my poor nerves" was said only twice.
Second, the characters were talking poorly about other people at least 55 times — it was difficult to count because it happened not only in direct speech but also indirectly.
Mushroomwitch asked to count how often Mary speaks, and I can present you a number: poor neglected Mary speaks 7 times.
My favourite category is "Mr Bennet is a dick" and here I counted 77 occasions. In my honest opinion, he is truly a dick.
Another category of that sort is "Lady Catherine is a cunt" with 47 instances (and 28 of them in a chapter where she tries to persuade Elizabeth not to marry Mr Darcy).
Speaking of Elizabeth: in the category"Elizabeth hates Darcy" I have 53 marks, and in the category "Elizabeth loves Darcy" there are 31 of them. (Apparently, she loves him more deeply and significantly than she hated him.)
As for Darcy, there are 56 marks in the category "Darcy is in love / loves Elizabeth".
And there were 9 instances of them being mutually in love.
To other, less significant (for me) categories:
Miss Bingley's faux pas: 23
Mr Bingley is sweet: 18
Mr Collins's faux pas: 21
Elizabeth is being a fool: 20
Wickham's red flags: 32 (this man is a whole International Workers' Day demonstration)
Darcy is ashamed: 5
The Bennets' faux pas: 7
Elizabeth is ashamed: 24
Charlotte is clever: 25
(This list looks like a Prologue from "Natasha, Pierre & the Great Comet of 1812")
I want to say that next time rereading I will be counting instances of pride and prejudice.