The character reflects on her anxiety and uncertainty regarding a relationship, questioning the depth of her partner's feelings. The possibility that their connection could be merely an affair weighs heavily on her mind, leading her to grapple with the implications of a casual relationship.
This sentiment highlights the societal norms of the time, where both men and women engaged in relationships with a trial-and-error approach, treating love much like a temporary arrangement. The metaphor of trying on suits underscores the superficiality involved in romance during that period.