There are some things that people in healthy relationships do not do. Couples and family therapist Amanda Bakro said happy partners don't act like "emotional accountants" to each other.

In a healthy relationship, both partners Do things for each other because they want to - not because they expect the other to return the favor. Happy couples "accept that neither they nor their partners are perfect, and they are willing to apologize and forgive and are open to 'easy mending of tears,'" said Marnie Feuerman.