Dennis has consistently been frank and honest about his position on divorce. And regardless of one's position, all somebody has to have to be in a divorce situation is a spouse who doesn't want to be your spouse anymore.
Scripture or not, as a practical matter it's hard to make a go of a marriage with a wife who suddenly decides she doesn't want to breathe the same air as you do.
A person can be a decent spouse and find themseleves in that situation. I can't imagine God holding divorce against a person when it was his spouse who flatly and matter-of-factly decided to leave them, for whatever reason.
As a moralist, (his words from his web site) I would hate to be on the wrong side of God when the Bible says God hates divorce.