Marriage Counseling By Everett L. Worthington, Jr., Everrett L. Worthington
Talks about negotiating differences during courtship in a Christ centered relationship. This is a free google book and has some advice worth considering. Check out the link. Chapter two speaks about individuals and their coupling.
http://books.google.com/books?id=YwEBjYWoaREC&pg=PA71&lpg=PA71&dq=negotiating+differences+during+courtship+christian&source=web&ots=r6_sHF43y4&sig=131p-LC4q7m5esa4epjEQf8UBxI&hl=en&sa=X&oi=book_result&resnum=2&ct=result#PPA27,M1