What Constitutes Cheating?

http://msn.match.com/msn/article.aspx?articleid=2656&articleSrc=2&sid=E656423E-DBF7-42A0-B0F2-8DE72A08C25D&trackingid=516311&theme=214&lid=159

This is a very general but somewhat interesting article. The definition of cheating really depends on the people involved and what they value and how they measure things. What do you guys consider to be cheating? I don't care what my significant other does when I'm not around. He can check out other girls, flirt with people, whatever. I don't care. I'd prefer that he not get physically involved with other people. But then if we have an open relationship that has been clearly discussed and outlined, then I don't care. What I want to avoid is being blindsighted. I think I'm more concerned with, what do certain thoughts/actions reflect about how much he believes in me and our relationship? How much he respects these things? Anything outside of that is harmless. Everyone likes to feel desired and attractive. Let him flirt all he wants when I'm not around. But just don't do it when I'm around because then it's disrespectful of me and the relationship.

I know I said that I would prefer a guy who waits at home. But if it's all innocent, what I don't know won't kill me and I don't ask. Time away from me is YOUR time. If I'm dating you, I trust you, so as long as you're not taking advantage of that trust and messing around, have a ball. It's all good with me.