Adolescents' supportive relationships with nonparental adults are beneficial when they are close and have trust, but few studies explore how adolescents believe closeness and trust unfold over time. I propose a method for prompting adolescents to retrospectively describe the development of abstract components of such relationships by sharing a study that used interviewee-created graphing to prompt adolescents to move from concrete parts of the relationship to abstract concepts using a tool adolescents would be familiar with from math classes. Analyses using Venn diagrams and matrices suggested adolescents conceptualized closeness and trust differently, however, this was shaped by whether the adult was a part of their family. Reflections on how the proposed graphing method can effectively be used will be discussed.