What term does Maxwell use to describe actions that contribute positively to a relationship?

The term that Maxwell uses to describe actions that contribute positively to a relationship is emotional bank account. This concept refers to the idea that every positive interaction, kind gesture, or act of support with someone serves to "deposit" into a metaphorical bank account, enhancing the relationship's value and trust over time. Just as one would manage a financial bank account through deposits and withdrawals, relationships can also be nurtured and strengthened through positive behavior and communication. When enough positive interactions occur, it creates a reservoir of goodwill, which can help to buffer against conflicts or misunderstandings when they arise.

In contrast, the other choices do not capture this specific notion as accurately. Relational investment refers generally to the contributions made to a relationship but doesn't emphasize the banking metaphor. Relational change in your pocket implies a shift in dynamics but lacks the emotional aspect inherent in Maxwell's terminology. Interpersonal growth certainly relates to the development of relationships but does not specifically highlight the transactional nature of positive and negative interactions as the emotional bank account does.