How is co-dependency best defined in relation to substance use?

Co-dependency is best defined as a dysfunctional relationship where one person's behavior negatively impacts both individuals. In the context of substance use, this often manifests when one individual enables the other's substance abuse, creating a cycle of dysfunction. This can lead to emotional struggles and a lack of healthy boundaries, where one person may prioritize the needs of the other at the expense of their own well-being.

In co-dependent relationships, the dynamics are unhealthy because they reinforce the addiction cycle, often resulting in one partner feeling trapped or obligated to care for the substance user, while the substance user may neglect their responsibilities and affect the emotional stability of both parties. This toxic dynamic can prevent both individuals from seeking help and making positive changes in their lives.

In contrast, the other choices describe healthy relationships or situations that do not align with the essence of co-dependency. For instance, mutual support and functional partnerships focus on a balanced, healthy interaction, while situations where individuals manage their substance use independently do not convey the interdependent struggles characteristic of co-dependency.