Co- and Inter-

“Codependency is defined as a psychological condition or a relationship in which a person is controlled or manipulated by another who is affected with a pathological condition (typically narcissism or drug addiction); and in broader terms, it refers to the dependence on the needs of, or control of, another…Codependency may also be characterized by denial, low self-esteem, excessive compliance, or control patterns.[2]Narcissists are considered to be natural magnets for the codependent.”
“interdependence – a reciprocal relation between interdependent entities (objects or individuals or groups). This concept differs from a dependence relationship, where some members are dependent and some are not.
In an interdependent relationship, participants may be emotionally, economically, ecologically and/or morally reliant on and responsible to each other. An interdependent relationship can arise between two or more cooperative autonomous participants (e.g. – co-op). Some people advocate freedom orindependence as the ultimate good; others do the same with devotion to one’sfamily, community, or society. Interdependence can be a common ground between these aspirations.”
http://en.m.wikipedia.org/wiki/Interdependence