Literature employs the term “reciprocity” in a variety of ways, illustrating its versatility as both an abstract ideal and a concrete principle. In philosophical and sociological writings, it is often portrayed as the foundational engine of social order—a crucial mutuality that binds human interactions and community obligations [1][2]. At the same time, in narratives of personal relationships or emotional exchange, “reciprocity” underscores the natural balance between giving and receiving, where the interplay of affection and expectation reveals both harmony and tension [3][4]. Beyond individual connections, the word is also deployed in political and economic contexts, where it signifies fair exchange and a balance of rights, as seen in diplomatic negotiations and trade treaties [5][6]. This multiplicity of uses reflects the depth with which “reciprocity” captures dynamic relations, whether in matters of the heart, society, or state.