Expressive suppression, which involves hiding emotions, is a common emotion regulation behavior in relationships but interferes with perceived responsiveness and closeness. These relationship costs make it important to identify the contexts in which the use and harmful correlates of expressive suppression are more likely to occur. Building from theory positing that different contexts entail different risks of rejection, we investigated whether expressive suppression was (a) more intense and (b) associated with worse relational outcomes in high-risk than low-risk relationship interaction contexts. In two studies (conducted in 2016-2017 and 2022), Belgian couples engaged in separate discussions about each other's most annoying characteristics (high-risk context) and valuable characteristics (low-risk context). For each discussion, each couple member reported how much they had suppressed their emotions, felt their partner was responsive toward them, and felt close to their partner. In Study 1 (