Health interventions delivered online (self-guided web-based interventions) may become more helpful through a person-to-program "working alliance." In psychotherapy, the working alliance signifies a therapeutically useful client-therapist relationship and includes an emotional bond. However, there exist no theories of how program users relate to online programs, or that explain a person-to-program bond theoretically. Addressing this gap, we conducted qualitative interviews with and collected program data from users of a self-guided web-based intervention. Taking a grounded theory approach, the analysis arrived at a model of relating based on two relational modes- and . Different combinations of these modes could describe a range of ways of relating to the program, including a , a , and a A person-to-program bond is explained by the model as an , enabled by making come-alive and a positive program interaction.