Final answer:
Ross and Ryan's romantic relationship is influenced by similarity in interests and lifestyles as well as proximityboth key factors in the formation of their bond.
Step-by-step explanation:
Ross and Ryan have formed a romantic relationship influenced by several key factors mirrored in the content loaded within the scenario. a primary factor is similarity, as they share common interests such as music, sports, and are both committed vegetarians. This concept of homophily suggests that individuals are attracted to others who share similar backgrounds, attitudes, and lifestyles, thus making it easier to get along and form connections.
Another significant factor is proximity. Their relationship was likely facilitated by the time they spent together at university, including sharing classes and working in the same group for an assignment. Proximity increases the likelihood of forming relationships because it allows for more frequent interactions and the opportunity to get to know each other better.