Hi Sida,
Without knowing the exact search terms you are targeting, I would advise that you just monitor the serps closely to see which news results slowly slip. A lot of times these type of news outlets gets a temporary huge boost that slowly fades. Depending on the format and content of your site, I would suggest seeing if there is a way to capitalize on the recent news and tie Simon's divorce into a well written blog post or piece of content on your site. If you can't beat them, join them!