The authors wanted to understand the challenges hybrid teacher educators face in efforts to foster third spaces in partnerships. They investigated the ways university-based teacher educators foster and mediate relationships to work toward a collective third space. The authors investigated the relationships encountered in partnership contexts, challenges and tensions faced in these relationships, and ways they negotiated tensions and worked to overcome impediments to developing third space over time. In addition, the authors propose a framework for moving beyond traditional notions of oppositional triadic relationships of student teacher, mentor teacher, and supervisor in recognition of complex social ecologies in the third space.