Hello. Are there any non-fiction books in our collection that discuss an atheist and a christian relationship and how to make it work?
A book that sounds like exactly what you want is listed at Amazon ; unfortunately Omaha Public Library doesn't have it, but it is new enough that you could suggest purchasing it at https://omaha.bibliocommons.com/user/login. Or you could try requesting it via interlibrary loan--see http://www.omahalibrary.org/my-library/interlibrary-loan for details about that. You might also take a look at some of the more general books about building lasting relationships, which may include some useful advice for making a relationship work despite differences; here's a list that came up when I searched Man-woman relationships + nonfiction: https://omaha.bibliocommons.com/search?q=Man-woman%20Relationships&t=subject&formats=BK&fictype=NONFICTION
I hope this helps!
Martha /Main Library