Yeah, maybe, but I doubt it. The only reason I say that is because I was with Mrs NoseHair from 1989 until 2000 before we decided to tie the knot and for us it made our commitment to each other stronger and improved our relationship in many ways. I take my vows very seriously, I'm old school like my mother. There will be only one Mrs. NoseHair. If she dies before me I will not remarry and I will never divorce. I said the words, I will honor them.
So I think it depends on the couple but my opinion is anyone who says they had a great relationship "until they got married" there were probably already some underlying issues that would have eventually led to the same result.