co-dependent
From Longman Dictionary of Contemporary Englishco-dependentˌco-deˈpendent1, codependent adjective someone who is co-dependent thinks that they cannot be happy or successful without another person, especially someone with a problem, and so tries to keep that person happy without taking care of their own needs, in a way that seems unhealthy —co-dependence, codependency noun [uncountable]co-dependentco-dependent2, codependent noun [countable] someone who is co-dependent