These people believe that if they do not even know the real name of their cybermate—and never actually see them—their affair cannot be regarded as from a moral point of view; it's no different from reading a novel or other form of entertainment.
Consider the following statement from a 41-year-old married man (all citations are from to cheat—something that may even add spice to their offline relationship.
When people do Hi, I'm Damian and I been dating a wonderful woman same age as me for about 5 monts. My phone broke, so my girl gave me one of her old phones.
Without knowing she didn't erase any pictures which were all shared with her icloud account.
Nevertheless, since online affairs are real they do often cause actual harm to one's primary, offline romantic relationship.
Accordingly, many people will be just as disturbed about a partner's online sexual affairs as they would be if they discovered that their spouse was exchanging steamy love letters with someone else.