It’s interesting that you have found that “personality issues” are a more common reason for divorce than abuse issues. That was a “chiddush” to me. I think it is possible tht you are right because I have been finding that more and more lately when I check out divorces. I have a feeling that it may be a relatively recent phenomenon. And I think that it is possible that nowadays there are people who are getting divorced who perhaps shouldn’t be (although I have no idea what percentage, but I think 99% is way too high).
On the other hand, it is important to realize that sometimes when people speak of “personality differences” they might really mean abuse. I think it can be difficult sometimes to clearly differentiate between abuse and personality issues. After all, when people don’t get along, chances are that they are going to end up being abusive. Also, there is not necessarily a clear cut definition of abuse. I know people who I think are abusive and if they were married to me or almost anyone else, they would be considered abusive, but because they are married to people who are like them, it works.