The Guernsey Literary and Potato Peel Pie Society, by Mary Ann Shaffer and Annie Barrows, is a series of letters between Juliet Ashton and the other people in her life. We only know of anything that happened to any of the characters through their correspondence with her, and there are a number of what might be considered main characters.
Juliet Ashton is the character who connects all the others, and she finds herself in a rather unusual conflict when Markham V. Reynolds asks her to marry him. He is a spectacular man in every way: rich, beautiful, cultured, and a book publisher. They do fun and exciting things together, and she enjoys her time with him very much.
However, they have only known one another for two months, and Ashton does not feel that is long enough for her to be certain Reynolds is the man she should marry. There is shouting and crying, but in the end Ashton asks him for more time to decide and he gives it to her. Earlier in her life, Ashton realized she was making a mistake the day before she was to get married, so she does not want to make the same mistake again.
It is an excellent choice, for Ashton marries someone else.