Where one is unfaithful to one's committed other, or spouse. Generally involves sex with another party, outside the boundaries of a committed relationship, such as marriage.



Considered to be a violation of trust, between two people, in a committed relationship.

Not just about the sexual betrayal, but also of the emotional betrayal, such as in trust and faith.

Not just sexual, or even.

Can be an emotional betrayal, in the sharing of confidences, time, and affection with a 3rd party, in place of the one.

Practice (Associated Acts):

Study by Blumstein and Schwartz, in 1983, showed that 83% of gay males were involved in a non monogamous relationships, while only 28% of Lesbians were.


Does not require a formal agreement, such as being married, for one partner to be guilty of infidelity.

There are basically five types of infidelity categories.

Opportunist, is where one may still feel committed to their partner, but gives into a sexual urge, or need, with another party.

Not necessarily a planned result, but one out of circumstances, risk management, such as being out of town, at work, or in some situation where the risk of being found out is considered to be minimal.

Obligatory, is where one does so out of fear, as a way to obtain validation or approval.

Usually out of fear of rejection, as well. They have a strong attraction to the other, and surrender, for not wanting to offend, or be rejected.

Romantic is basically when one falls out of love with their current partner, and becomes romantically attracted to another, though still within the relationship.

Conflicted Romantic is where one is still in a relationship, but has a strong romantic and sexual attractions to more than just one person

Commemorative is where one is still in the relationship, but no longer really has any interest in that partner.

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