2. Being married only once oin a lifetime.
3. Having an exclusive relationship with someone.
QUOTE: A journalist (Michael O'Keefe) and Nina (Laura San Giacomo) in Nina Takes a Lover (1995):
-- Journalist: ' There are basically two arguments about infidelity. One is that you're either born monogamous or you're not and the other is that we're all capable, certain conditions in a marriage provoke it.'
-- Nina: ' What do you think? '
-- Journalist: ' I think it's a little bit of both.'
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