By presenting the story regarding a young girl's infatuation with an older man, including the conflict with the presence of his "fiancee," and giving the story its title, the reader is led to believe that Edie (our narrator) is somehow going to run off and marry Chris, the airplane pilot.
Edie is really too young to be involved with Chris, but Chris in no way discourages her. When Chris finds out his fiancee, Alice, has arrived, he packs up quickly and only tells Edie that he's leaving.
When Alice finds out that Chris is gone and Edie knows why, she turns ugly and accuses the young girl of being a tramp. It is only after things have gotten totally out of hand that Mrs. Peebles is able to ascertain from Edie that she has only been kissed by Chris.
However, Chris had promised to write to Edie, which he never does-- but over the countless days that she sits at the mailbox waiting, we are surprised to learn that meeting her husband is related to that waiting, but that it does not include Chris at all. It is not until the very end that the reader's curiosity as to how she meets and marries her husband is satisfied.