4. A byte on the side

People generally define infidelity on a moral and ethical level. So the idea of being unfaithful is enough to point fingers at. Yes, no crime may have happened or no contact had taken place but pre-meditation is enough for me. Pre-meditation in murder cases drags the killer deeper in trouble; forethought of an affair in marriage may go 'unpunished' as longs as it is not expressed. If Wifey found out, she might come after Dick with a knife. Too bad. So going ahead with virtual sex would be wrong for Dick.