I recommended Ex Libris, so sorry to have been the cause of marital discourse, Pepe!
Re courtly book love, I hardly ever read a brand-new book - mostly they're library books or second-hand, and come pre-bashed so I don't fret too much about them.
Currently reading a genetic history of Europe, translated from the Swedish, which sounds impressively austere. It's really not - it's by a science journalist and she's pretty light on the actual science (which fine by me, not a criticism). The book is My European Family: The First 54,000 Years by Karin Bojs.
She travels to various ancient sites, eg. cave art in Dordogne, Stonehenge (I was amused when she went to visit one academic in Bradford and was a bit sniffy about the locale). Not sure it was really worth all those air-miles, as it doesn't seem to add much information or colour to the picture. She outlines the various waves of migration (early hunters, the first farmers, the wave of Indo-European herders) and what we know about how they lived. She's making a vaguely political point that all Europeans are of migrant stock, one way or another.
It's not bad, but I enjoyed a similar book a lot more, A Brief History of Everyone Who Ever Lived: The Stories in Our Genes by Adam Rutherford.
I read the Sue Black book last year. I wouldn't say I was completely blown away by it, but it's worth the read, especially for 99p.
By way of contrast, I've also downloaded the Kelsey Miller book about Friends, thanks to Chessie's mention. It's really for dd, who is Friends-obsessed, but I'll read it first.