The main purpose of this study is to describe and to understand the intercultural couples’ relationships in Finland from the relational-dialectics perspective by Baxter and Montgomery (1996). Following the interpretive research tradition, in this qualitative study, data were collected from 18 heterosexual intercultural couples (36 persons), utilizing the multi-method approach. The multi-method approach in this study includes theme interviews (5 couples), concept map interviews (six couples) and e-mail interviews (seven couples). The data were analyzed following an inductive content analysis approach. The intercultural couples in this study experienced internal and external dialectics, related respectively to intercultural adaptation, e.g. need of support, uncertainty about the future, and identity confusion issues, and to challenges of inclusion and exclusion regarding, e.g. family support, and access to a social network, Intercultural relational dialectical forces present in the intercultural couples’ relationships include continual re-negotiation, cultural identity and belonging, increased sensitivity to differences and similarities, social power, social support, and uncertainty.