Most people associate this term with physical acts of infidelity, but it is possible to cheat on someone emotionally. (perspectivesoftroy.com)
Men and women who said they had been poached by their current partner tended to start out the study by reporting less commitment to their existing relationship, feeling less satisfied in it, committing more acts of infidelity, and looking out for more alternatives. (businessinsider.com)
We think to die for religious truth is an act of blind zeal, whereas Muslims think to die just for national honor is an act of infidelity. (religion-online.org)