Britney Spears is absolutely livid after her ex-husband Kevin Federline dropped a tell-all memoir, spilling private secrets from their marriage without warning. Now, as Kevin seeks to rewrite their shared history, Britney is considering legal action to block the most invasive revelations, while fans roast him online for cashing in on his connection to her fame. Let’s dive into how this battle for control of their narrative is about to get ugly…