"She meant nothing....." Uh-huh. That is the biggest lie of all. And I don't think it is helpful to compound the problem by lying to ourselves about it either. WTH do we expect them to say?

Or course she meant something. All affairs mean something. Notice how they lie and sneak? And what about the sheer logistics of organizing the time to get away and be together?

A one-night stand may mean "nothing." But an A? It means everything at the time.