Margaret Clark (1984) distinguishes between exchange and communal relationships. Specifically, exchange relationships are characterized by peoples attempts to maintain equality of their costs and compensation. Oftentimes, this is achieved by tit-for-tat repayment of benefits. Partners in communal relationships, on the other hand, aren’t concerned about whether they have received or given a benefit, instead they respond to each other’s needs as they come up.
I think this is an interesting variable to use to characterize relationships. Although it isn’t something I’d immediately see as relevant, it has a profound influence on people’s relationships. As an example, my boyfriend and my roommate have a relationship that is extremely exchange based, almost to the point of coldness. My boyfriend doesn’t even feel comfortable asking favors of my roommate anymore because he hates knowing that he’ll be “in debt” to her for a while. He used her spare phone when his wasn’t working, but was uncomfortable the whole time. I think that it’s very evident that exchange relationships can instill bitter and awkward feelings in people, but that could be my own experiences talking. :)
Clark, M. S. (1984). Record keeping in two types of relationships. Journal of Personality and Social Psychology, 47, 549-557.