This is what eHarmony does: it uses 29 unique dimensions of compatibility to match clients with people whose characteristics match their own, leading to more satisfying, long-lasting relationships. It led to him determining that there must be a better way to meet potential partners where compatibility is a key feature in the match. Warren spent his career counselling married couples and the premise of eHarmony was born from his experiences where couples who were compatible on multiple levels were more likely to have more satisfying relationships. EHarmony is an online dating website created by Clinical Psychologist Dr.