Is mental cruelty difficult to prove?
It depends. I have rarely found that parties actually go to battle over grounds of divorce because it is not cost-effective. For example, a party could simply choose to separate and then wait for two years. In Illinois after waiting for this two year period, in many cases it is virtually impossible to successfully contest grounds of no fault divorce. If the ground of mental cruelty is not contested then obtaining a divorce on the ground of mental cruelty is usually quite easy. The key factor is whether grounds of mental cruelty are contested.
