Why do some women prefer older men?

This is subject that I will never understand. Why some woman want to date older man and not within their own age category? It is a recepy for desaster. One of my friends is with a guy that's 20 years older then her. I told her that relationship won't last she got angry at me and threw in my face about my divorce And ex-husband. Which had nothing to do with her situation. I am trying to help her. I am not ageist I just don't agree about huge age gaps.
Why do some women prefer older men?
Post Opinion