Partnership quality is a strong predictor of happiness, health anda successful family life. Within a migration context in particular, we can assume that there will be additional risks of complicated and dissatisfying situations. This paper focuses on Turkish migrants, the biggest migration group in Germany. It aims to identify those factors which result in the view regarding existing relationships either remaining constant or deteriorating over a time frame of three years. We use data from two waves of the Generation and Gender Survey (GGS). Two samples are used, namely women of Turkish origin and women without a migration background in Germany. The results show that an impression of equity in the sharing of household tasks could be a protective factor, for both groups. Conflicts are major risk factors, but more so for German than for Turkish women. Loneliness is a strong predictor of dissatisfaction and instability in Turkish, but not in German relationships.