Co-rumination refers to excessive discussion of personal problems within a dyadic relationship. It brings about the adjustment trade-offs for individuals. Specifically, co-rumination is not only related to the positive aspects of friendships, but also related to one' s internalizing problems such as depression and anxiety. Previous research mainly investigated such themes as gender differences, developmental characteristics, and manifestations in different close relationships of co-rumination. Findings indicated that the adjustment trade-offs ...