Actually, you don't disagree with me, Mark. (Ha! That's a good one---"no, you're wrong, you don't disagree with me!")
I think everyone should get to do whatever they please, as long as no one gets hurt without paying for it in advance. Marriage is what married people make it. I know lots of married people who are happy to be so. Way cool-----for them. I know grandparents who were never married, raised a family, retired, etc. And, yes, I know gay people who are married and happy to be that way. Sickos. Kidding.
However, being technical here, if you've had sex outside of marriage, ever, then you're already guilty of ignoring it and violating it. Boy, rules can really suck, huh?
"Ya rolls the dice and ya takes yer chanskes."