The Right Attitude to Rain by Alexander McCall Smith
Isabel Dalhousie, philosopher, has her American cousins, Joe and Mimi as guests this summer. They introduce her to Texas millionaire, Tom. Tom is newly engaged to a gold-digger and Isabel , of course over-thinks the situation but also finds an 'out' for Tom. Also Isabel is questioning her feelings for Jamie and ends up in an affair with him.
This book is billed as a mystery, but it is not your garden variety of mystery. It is more of the philosophical type. Why do we do what we do? Why do we say what we say?
I find these books make you think of your own answers to these questions.
First Line: "To take an interest in the affairs of others is entirely natural; so natural, in fact, that even a cat, lying cat-napping on top of a wall, will watch with half an eye the people walking below."