Commitment is the assurance that both parties want the relationship to continue indefinitely and are committed to safeguard both the individual’s health and well-being and that of the relationship. Beyond that primary relationships I define as those in which you have daily living, financial co-mingling or co-parenting responsibilities as such that other relationships or goals may become secondary intentionally or not. Secondary relationships are those which chose by intention to exclude the forementioned commitments. Terciary relationships often float in and out of secondary status as they are the relationships which seem to flow on the whim of circumstance as there are so many other commitments (primary/secondary) to family, friends, work and other lovers. Its not surprising when terciary lovers enter a monogamous pact which excludes you but it would be treachery if a secondary lover did and treason for a primary love.