Two studies examined how implicit theories of relationships are associated with ghosting (i.e., ending a relationship by cutting off all contact). Previous research on implicit theories of relationships has identified two types of beliefs, destiny and growth, and the present research examines how these implicit theories are associated with ghosting perceptions, intentions, and behaviors. Study 1 was an exploratory study conducted on Mechanical Turk that focused on romantic relationships (N = 554). Study 2 was a confirmatory study conducted on Prolific Academic that aimed to replicate the romantic relationship findings and extended the research to friendships (N = 747). Stronger destiny beliefs, compared to weaker destiny beliefs, were positively associated with feeling more positively toward ghosting, having stronger ghosting intentions, and having previously used ghosting to terminate relationships. Stronger growth beliefs, compared to weaker growth beliefs, showed the opposite pattern with perceptions of acceptability and intentions to use ghosting. Taken together, the present research provides an important first step in understanding how implicit theories relate to relationship termination strategies and, specifically, the process of ghosting.