Codependent behavior occurs when an individual relies on someone else to feel worthy or to help define her identity. Codependency often makes it difficult for the individual to function or feel satisfied without the other person. Codependent individuals struggle to do anything independently without their partners by their side.
In a codependent relationship, one partner often sacrifices significantly for her partner. She often focuses her life solely on the partner and acts very clingy. Codependent behavior often causes the individual to forgo her own mental and physical health for the sake of making her partner feel satisfied. Codependency may leave an individual feeling anxious and may cause her to neglect other relationships.