Has one partner been unfaithful with an affair, online, or other breach of trust? (theravive.com)
In the University of Michigan study, one of the strongest findings was that people believed non-monogamous couples to be more sexually risky.1 A subsequent online survey revealed, however, that people who are unfaithful in a monogamous relationship are more sexually risky than those who practice consensual non-monogamy. (scienceofrelationships.com)
For he is a type of the man who is unfaithful even in his faithfulness. (religion-online.org)