This chapter is about online discussions on shared physical custody in Sweden and Finland, two countries where shared physical custody is most common in the world. Shared physical custody refers to a system in which both parents take care of the child(ren) equally after separation. In practical terms, this means that both parents need to juggle family and work life instead of relying on financial contributions to compensate for fewer caring responsibilities. The chapter links the prevalence of shared physical custody to the spread of the second demographic transition and increased individualisation in society. Through its analysis of small story narratives, the chapter identifies three typical themes: competition over a just financial contribution, competition over children’s best interests and attention, and parents’ autonomy over their parenting style. Their findings point out the usefulness of online discussion to study emergent motives and interpersonal dynamics in intimate relations.