Seven propositions presented are 1) perceived self-concept support is the basis of interpersonal attraction; 2) different types of perceived self-concept support are the basis for different types of interpersonal relationships; 3) different types of self-concept support are the basis for entry into and increasing intensity of interpersonal relationships; 4) the type and form of self-concept support is homogeneous by culture; 4) conflict which threatens self-concept support on crucial relationship variables--the lack of it or attacks on it--is the most potentially dangerous type of conflict in interpersonal relationships; 6) negotiation of differences in perceptions of self-concept support on crucial relationship variables cements interpersonal relationships; and 7) quality interpersonal relationships consist of intimacy, personal growth, and effective communication on the crucial relationship variables