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A committed relationship is an interpersonal relationship based upon a mutually agreed-upon commitment to one another involving love, trust, honesty, openness, or some other behavior. Forms of committed relationships include close friendship, long-term relationships, engagement, marriage, and civil unions. The term is most commonly used with informal relationships, such as "going steady," but may encompass any relationship where an express commitment is involved.
Terms related to committed relationship include:
- monogamy: having a single long-term sexual partner
- marriage: a legal and social binding between two people.
- sexual infidelity: having a sexual relationship without a commitment to have no other sexual partners
- sexual fidelity: not having other sexual partners other than one's committed partner, even temporarily
- serial monogamy: having a series of monogamous relationships, one after the other
- open relationship: a commitment to a partner without excluding other romantic or sexual involvement
- polygamy: having multiple long-term sexual partners
- polyandry: having multiple long-term male sexual partners
- polygyny: having multiple long-term female sexual partners
- polyamory: encompasses a wide range of relationships; polyamorous relationships may include both committed and casual relationships
- promiscuity: having casual sexual partners at will (compare with chastity)
- relationship anarchy: having relationships that develop as an agreement between those involved, rather than according to predetermined rules or norms.