Isn't or Isn't Tweeting considered cheating?

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I feel as though tweeting should be considered cheating because cheating is mainly defined as doing something you wouldn't normally do around your significant other.  If someone is living another life outside their day-to-day life, then it becomes an infidelity issue.  Especially for married people, there is actually no reason to be tweeting people at all.  There is no need to tell the public your every move, or state problems that are going on in the marriage and they are affecting the person.  I understand when someone is not getting that attention they need in their relationship, they will use virtual methods to fill their desire of being wanted.  This method, however, is not appropriate and can ruin lives. It is very easy for people to get caught up in the virtual life but in the end, they need to realize that there is a difference between affecting a life that is in front of you and affecting a life through the phone or on the computer.