Alanis Morissette is apparently planning an autobiography (which she’s been talking about since last year) that will dish, among other things, the juicy details on her long-term relationship with that moody little twit Ryan Reynolds. When they were together, Ryan was a struggling actor and the less famous half of a pairing with Alanis. The couple were together from 2002 to 2006, and were engaged for a year before their big bustup. Sources close to Alanis said that she was devastated when Ryan dumped her (and she wrote her song “Torch” about said devastation), and this will be discussed in the new book. An “insider” standing by said that Ryan’s wife SarJo’s rather snakey about the whole thing. “Scarlett has tried to live a very private life since she married Ryan last year, and the last thing she wants is attention focused on her husband’s past,” the insider told The Enquirer. Hmmm.