I got it off the Wikipedia page about Hemingway. I might have misread their article, I was skimming a bit - It makes more sense to me that it would have been written by someone making a criticism of his writing. It would be unusual, which is why it caught my eye, that it be said, even through a character in a book.
I saw that quote as an expression of Hemingways' experience with women rather than being contemptuous or defining women as if by a god on high.
I took it as him saying I can divide the women I slept with into two camps by the impact they had on me.
When I read it it made me laugh and wonder if it is true. Hence my post. I know it is the sort of conversation that should be kept for round campfires but all I got there was another Hemingway quote - all first drafts are shit - though now we are talking about goats and rabbits.