The main direction of research is focused on the issue on issues of life in mixed couple (different ethnicity), the dotted highlights in its evolution and its implications for family system. Given the ethnic and religious diversity of Dobrogea, aims of this paper are to introduce the analysis of Turkish-Tatars couples and mixed couples (Romanian and Turkish-Tatar). Approach course is not easy, but is extremely exciting. Mixed couples are perhaps the most daring examples of fight against all obstacles, but most times you see them defeated. In this respect we assumed the theory that interaction models (cooperation, competition, and conflict) undergo changes during the marriage. Our research has revealed evolution of mode in which marital couples and divorced subjects interact, evidenced by moderating variables what are the sensitive and vulnerable aspects, potentially favorable of conflict and couple dissolution, but also what are the strengths points who generate stability. We believe that marriage is a complex issue, and when we face a case of mixed marriage couples should be seen as having a specific interactional dynamics, it earns even more content, enriching. Of course, this can give good color of life couple, involving the healthy adaptive mechanisms and just as well have borne a potential destabilizing conflict that the two members of couple can not managed him, and their mechanisms, chosen to cope with life situations, not be the most appropriate.