Final answer:
In the second stage of friendship, mutual trust is the main criterion for deepening the bond between individuals. While proximity and shared interests may facilitate initial contact, it is the development of trust that solidifies a friendship. Reciprocity is also essential for maintaining the balance in a relationship.
Step-by-step explanation:
In the second stage of friendship, the main criterion for friendship is mutual trust. While factors such as shared interests, proximity, and reciprocity play a role in forming and maintaining relationships, trust is a fundamental aspect that allows friendships to develop beyond mere acquaintanceship. Without mutual trust, a deeper connection is difficult to establish, and the relationship may struggle to progress.
Proximity is indeed crucial for the likelihood of forming relationships since it allows for frequent contact, making it easier to get to know people and potentially develop a bond. However, mere proximity doesn't guarantee the formation of a friendship; people don't form relationships with everyone they are close to geographically. Instead, after initial contact facilitated by proximity, it is the establishment of mutual trust that more deeply solidifies the relationship.
Furthermore, in any stage of a relationship, reciprocity is important as it involves a balanced give-and-take, ensuring that both parties contribute to and benefit from the relationship. This two-way street fosters a sense of fairness and equality, which is critical for the relationship's sustainability.