Emotional intensity seems to be related to the selection of emotion regulation (ER) strategies. Previous studies have focused primarily on intrapersonal ER. In contrast, everyday use of interpersonal ER remains understudied, with the association between perceived emotional intensity and selection of intra- or intrinsic interpersonal ER still unclear. In a preregistered study, we used experience sampling method data from a community sample of individuals in a heterosexual relationship (