How's democracy related to community?

Communities are not built of friends, or of groups of people with similar styles and tastes, or even of people who like and understand each other. They are built of people who feel they are part of something that is bigger than themselves: a shared goal or enterprise, like righting a wrong, or building a road, or raising children, or living honorably, or worshipping a god. To build community requires only the ability to see value in others; to look at them and see a potential partner in one’s enterprise.

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.