In 'Silas Marner' by George Eliot, social relationships are distinctly organized by class, with limited interaction between different social strata and a notable impact from geographical boundaries. The story illustrates how communities are insular, often leading to dynamics of exclusion, as exemplified by Silas Marner's initial ostracism due to his unfamiliar background. The exclusivity of the village of Raveloe exacerbates social segregation and prejudice against outsiders, reflecting a deep-seated security in their familiar environment.