As the author is a keen observer of human nature particularly the relationships between people, he is narrating the entire story of Louise in his own words. The story is framed in an ironic way, but at first it is a hidden irony. He says that Louise had a delicate and gentle nature and though she disliked the author, she never told him that directly but her delicate, ladylike gestures conveyed to him what she meant. They knew each other for twenty-five years and according to her, he was a course, brutal, cynical and vulgar fellow. But one thing he could not understand, in spite of all that, why did she take an interest in him She invited him for lunch and dinner quite often and also asked him to spend a week-end at her country house. At last, the author thought to have understood her motive. It was the author alone who did not believe in her and could not be fooled by her. She knew it and was constantly trying to convince him and took it for granted that one day, she would succeed. - See more at: http://ardhendude.blogspot.com/2014/08/interpretation-from-louise-by-w.html#sthash.htuajMlF.dpuf