Are you saying that when a couple has problems in their relationship, the husband usually murders the wife? Because that simply is not so imo. The high divorce rate indicates that.
I think she is saying that if the wife goes missing, when a couple has problems it's a fair bet to look at who stands to benefit from that lucky occurrence., .. the high divorce rate is indicative of those who find the process comforting and rational and while heartbreaking and dreadful sometimes, most get thru it, but it is also fair to say, and correct to say, that there is, among the community , some people, men and women , for whom the process of divorce is anathema , unthinkable and is the last resort, before all else, including murder, is thought about a hell of a lot.
We know this because the murder statistics of men murdering women and women murdering men all under the shadow of imminent divorce, bear out this conclusion.