Is it my responsibility to make my partner happy?

In a healthy relationship, you are responsible for how you treat your partner and for contributing to the overall health and happiness of the relationship. However, you are not responsible for your partner's individual happiness. Each person is ultimately responsible for their own emotions and well-being. Trying to make your partner happy all the time can lead to codependency and resentment. The goal is to support each other's happiness, not to be the source of it. A healthy partnership involves two whole individuals choosing to be together.