A Light in the Window by Jan Karon

In the second book of the Mitford series, Father Tim is dating his neighbor Cynthia but is unwilling to admit that he loves her.  Complications develop when Cynthia sees Father Tim return home after an unplanned all-nighter at a rich widow's house.  Can Father Tim fight off the unwanted attentions of Edith Mallory?  Will he overcome his fear of commitment and ask Cynthia to marry him?  You'll find out the answers to these questions and more.  Another satisfying read! 432 pages.