Reflective supervision/consultation (RSC) is a relationship-based form of professional development for the infant and early childhood mental health (IECMH) workforce. A critical context for effective RSC is the quality of the reflective alliance between supervisor and supervisee. Their "way of being" together is inclusive of safe, caring, and consistent relationships and serves as a source of resilience for providers. This article describes the impact of a 1-year project in which 49 IECMH supervisors participated virtually in small RSC training groups during the COVID-19 pandemic. Supervisors experienced significant improvements in positive emotions and work engagement, with concurrent decreases in ruminative thinking and negative work experiences. Supervisors reported that many factors played a role in their positive experience within RSC training, with the relationships with supervisors and fellow group members as critical to positive outcomes.