Here is a great article from Psychology Today explaining why Narcissists in a divorce case want to fight in court. In my experience, the narcissist husband always believes their right, they want everyone else to feel sorry for them and want an audience with which to blame their wives in front of.
I have yet to have a case where a narcissist husband takes responsibility for any part of the marriage ending. In the mind of the narcissist husband, the divorce is always the wife's fault no matter what.
This article explains why cases involving a narcissist husband, which are cases we handle, tend to be litigated in court. You will need an experienced litigator to handle your case if you are divorcing a narcissist husband.