Who is committing adultery and who is not

I have had quite a heated debate about this in the past so I have read up on it a little - here is what I have found...

First article:
www.gotquestions.org/divorce-remarriage.html

Second article:
christianity.about.com/od/faqhelpdesk/a/divorceremarria.htm

The best example in the Bible about an adulterous relationship was of course King David and Bathsheba. They did not get divorced when YHUH told David he would be punished and there would be consequences - David repented and accepted the punishment of watching his first child with Bathsheba die. He truly repented, stayed with Bathsheba, and they then had Solomon, who, of course, was the wisest man of all and who built the Temple for YHUH as prophesied. Out of bad still came good according to YHUH's will. We are not to judge - only admonish and make people aware that there are consequences for sinful actions in YHUH's eyes.