Yes! As more than one person is involved in a relationship, for an unhealthy relationship to repair and continue, all involved parties will ideally be working on independent growth and change, which benefits the relationship. Usually, individuals must work on boundaries, communication, and their own self-care to improve the relationship. A lot of people with codependent characteristics feel it would be best to do all of this work with their partner, family member, or loved one but this is often symptomatic of the problem (i.e., people struggling with their identity outside of the other) so it is recommended that the majority of treatment be done individually to build that sense of independence.