No they're not. http://www.nytimes.com/2014/12/02/upshot/the-divorce-surge-i...
And where are you getting the idea that a diverse occurs between people that care about each other? If they still did, the divorce wouldn't be happening.
Myself and pretty much everyone I know if asked what is the average divorce rate would say it's around 50%, many of us also have the pleasure of having close friends who married really early (early 20's) going through a divorce right about now (in their late 20's to early 30's) which solidifies this perception even further.
In this case like in many others the perception is what matters, even if in reality it's quite different, I wonder why this hasn't been addressed more frequently since in the early and mid 90's the trope of the 50% was broadcasted all the time.