The assignment explores the concept of cross-sex friendships, where individuals from different genders form close and intimate relationships without romantic or sexual intentions. The author shares their personal experience of having a cross-sex best friend since early adolescence, and how they maintained a strong emotional commitment without expectations of emotional commitment or loyalty. Theories related to interpersonal relationships are applied to analyze the real-life example, highlighting the importance of adhering to friendship rules, low expectation, and differences in self-disclosure. The discussion concludes that maintaining such a relationship can be challenging due to attitudes and cultural norms, but can be mitigated by sharing a bond of affection and adherence to friendship rules.