When a woman in a relationship decides to date a new man, she's not really cheating. She's simply ending the old relationship and beginning a new one.

But there is such a thing as dishonesty. The ethical problem is if she does it without telling the original guy she doesn't want him anymore.

Now the question is how long can the overlap period be? None at all? 1 week? 1 month? It's like interviewing for a new job while you still have an old job.