- goal sharing and accountability - based in utility and efficacy - respectful and involved - Tangible reciprocal support that is: - Often asymmetrical in value exchange - Strategic in approach - Clear in expectations - Active rather than passive - requires accountability systems/rituals - [[what is love|sternberg's triangular theory of love]] - very high in commitment - can be high in intimacy - relationship comparison - more actively invested than companionship - founded in more trust/vulnerability than casual friendship - more structured than mentorship - More goal-oriented than therapeutic or emotional support only relationship