Social rejection is a common and unavoidable experience for users of dating apps. Research suggests that socially anxious individuals may be particularly likely to use dating apps to establish intimate relationships, given their preference for online (vs. face-to-face) communication. However, social anxiety (SA) symptoms are associated with heightened negative affect and decreased prosocial behavior following social rejection, suggesting that exposure to dating app rejection has deleterious consequences in this population. This study examined whether SA symptoms and social rejection (vs. acceptance) feedback interact to predict participants' negative and positive affect and social engagement with dating app matches. Participants (N = 128) evaluated for SA symptoms were randomly assigned to receive high or low match rate feedback on a simulated dating application task. SA symptoms were negatively associated with positive affect following high match rate feedback and positively associated with negative affect following low match rate feedback. SA symptoms were negatively associated with self-reported likelihood of contact initiation with matches. Results suggest that high socially anxious individuals are more susceptible to negative repercussions of social rejection on dating applications.