By Ben Macintyre. (A post at Wittingshire pointed me to it.)
Non-fiction story of seven English soldiers who were stuck behind the lines in France during the English retreat in 1914 (during the Great War); one of the soldiers falls in love with one of the village girls, hence the title (you are told this in the prologue), and eventually the soldiers are caught by the occupying German army.
Pretty good book, but it seems a little short to cover two entire years of life. 80 years later, however, I guess the author may not have been able to come up with enough confirmed detail to flesh out the story more. I also disliked the epilogue, agreeing with the villagers that he interviewed in it that it was better left in the past.