Emotionally Focused Therapy (EFT) has the best empirical support for good outcomes for couples. This video, presented by Dr. Sue Johnson, the founding scientist, explains the process involved. In the Washington DC area, I recommend that you look at this site to find “Certified EFT therapists” near you. And, you can find out more on Dr. Johnson’s site about EFT. There’s a FIND a THERAPIST tab at the International Centre for Excellence in Emotionally-Focused Therapy.