This is a pretty grossly unfair interpretation. Most people who react this way to prenups do so on the grounds that if you're already planning to divorce, then what's the point of getting married? Or said another way, if you really plan to be together with me forever literally the rest of our lives, then the prenup is moot. If it is not moot to you, then you must not be as committed as I am, and I am calling off the marriage. 

I don't agree with the logic, but it's way more reasonable and sympathetic than accusing her of being a gold digger.