What does "oddly related" mean in a mental status exam?

Relatedness is part of Self-determination theory.

Self-determination Theory (SDT) is just that — a model, a macro theory, of human motivation (Singer, 2017).

and refers to the need to feel connected to others (Wang et al. 2019). It is

people’s need to care about and be cared about by others, to feel connected to others without concerns about ulterior motives, and to feel that they are contributing to something greater than themselves (Fowler, 2014).

In a paper by Martela & Riekki (2018), they said

Based on research on self-determination theory, basic psychological needs, and prosocial impact, we suggest that there are four psychological satisfactions that substantially influence work meaningfulness across cultures: autonomy (sense of volition), competence (sense of efficacy), relatedness (sense of caring relationships), and beneficence (sense of making a positive contribution).

Without more information from the person who wrote this, the comment "oddly related" cannot be meaningfully interpreted.

Further Reading

Keller, H. (2016). Psychological autonomy and hierarchical relatedness as organizers of developmental pathways. Philosophical Transactions of the Royal Society B: Biological Sciences, 371(1686), 20150070. https://doi.org/10.1098/rstb.2015.0070

References

Fowler, S. (2014). What Maslow’s Hierarchy Won’t Tell You About Motivation Harvard Business Review https://hbr.org/2014/11/what-maslows-hierarchy-wont-tell-you-about-motivation

Martela, F., & Riekki, T. J. (2018). Autonomy, competence, relatedness, and beneficence: A multicultural comparison of the four pathways to meaningful work. Frontiers in psychology, 9, 1157. https://doi.org/10.3389/fpsyg.2018.01157

Singer, L. (2017). Self-determination Theory: Understanding Human Motivation for Fun and Profit https://leif.me/2017/01/self-determination-theory-understanding-human-motivation-for-fun-and-profit/

Wang, C. J., Liu, W. C., Kee, Y. H., & Chian, L. K. (2019). Competence, autonomy, and relatedness in the classroom: understanding students’ motivational processes using the self-determination theory. Heliyon, 5(7), e01983. https://doi.org/10.1016/j.heliyon.2019.e01983