I'm reading a book called "Caring Enough to Confront" by David Augsburger. I got it at church so it does have a christian base to it.
Here is what the back cover says:
Many people try to avoid conflict. but confrontation can be a catalyst for deeper loving care as we learn to integrate our needs and wants with those of others. Caring Enough to Confront will teach you how to build trust, cope with blame and prejudice, and be honest about anger and frustration. You'll learn how to confront with compassion in family, church and work rleationships to resolve conflict in a healthy and healing way.