Inspired by the fact that I highlighted this line:
and added the note: "Getting sick of this. Didn't someone tell him he was overdoing it?" I did some analysis...
This book is something less than 66k words. It uses:
love/loves/loved 302 times
and
hate/hates/hated/hatred 139 times
Compare that to:
The Thorn Birds = 226k words (four times longer, but also mixes up romance and religion) which uses:
love/loves/loved 334 times
and
hate/hates/hated/hatred 58 times
I checked out some YA and romance works as well, and nothing comes close to
The End of the Affair for loving and hating. So I'm not surprised that it felt like he was overdoing it.