As global business environments grow increasingly reliant on virtual collaboration and international mobility, understanding how affect can impact intercultural competence development has become a pressing theoretical and practical concern. This three-paper dissertation advances a unified argument: affect is not a byproduct of intercultural encounters but can serve as a mechanism through which individuals develop intercultural competencies. The first study introduces affective retooling as the mechanism through which emotionally charged cross-cultural encounters in global virtual teams result in intercultural sensitivity and performance gains. The second study argues for mindfulness as a micro-foundational mechanism explaining how structurally similar international business travel experiences can generate different competence outcomes. The third study introduces recursive sensemaking to help explain how intercultural competence continues to amplify long after an international experience, with longitudinal evidence showing delayed developmental gains surging over time. Together, these studies reconceptualize intercultural competence as a dynamic, affect-driven, and longitudinally recursive developmental process, offering theoretical contributions to contact theory, trigger event theory, and cultural retooling, with implications for global leadership development.