Klara and the Sun by Kazuo Ishiguro
We first meet Klara in a department store that sells Artificial Friends like her as companions for children. Klara becomes enchanted with one likely customer, Josie and keeps choosing the best positions in the shop until she is eventually chosen by her. Klara is fascinated by humans and is eager to learn to be the best possible Artificial Friend. But, she is mystified about why Josie and the other humans she encounters act differently with different people. Ishiguro utilizes the finite character of Karla to comment on the variable human condition and our capacity to love. And Karla has a special relationship with the sun-but you have to read the book to find out….