People with problems in their marriage may find the cyber-love hastens the demise of the marriage. It may be the catalyst that finally brings everything to a head. Marriages have been know to break up over on-line relationships. Each person has to deal with that question individually. Many people who care very much about their marriage, still find it hard to give up their cyber-relations.
People have different ways of coping and for rationalizing.
However, it is a vast cyberspace out there and relatively easy for people thousands of miles apart, with many time zones separating them, to be online without each other and to meet new love interests. The promises people make to each other online are usually given and taken very seriously. Oddly enough, most people in a cyber relationship whose online love has a Real World significant other, don't get jealous of the Real World relationship. It is the cyber cheating that causes the pain. The two worlds have a distinct separation in the minds of many.