Eric Johnson's ex, Keri Johnson is reportedly thinking about publishing a tell-all that documents Jessica Simpson's involvement in Keri's failed marriage. According to Celebuzz, Keri has already started writing about when Eric started dating Jessica -- when he was still married. A source said, "She's always thought about writing a book through their divorce. She actually started writing during the divorce to cope with what was happening. She just wants to be honest. Keri wants to detail the divorce from her own perspective and what happened, and inevitably Jessica would be a part of that. She would talk about how they were so public with their relationship during her divorce. She's always struggled with going public. So she's still 50-50 about writing it." Eric and Keri were married for five years. They legally separated in October 2009. They filed for divorce in January 2010. Reportedly, within months Eric and Jessica were dating. Eric and Jessica announced their engagement in November 2010 and in May 2012 Jessica gave birth to Maxwell. Meanwhile, Jessica and Eric hit another speed bump in their relationships. They were reportedly going to buy Ozzy and Sharon Osbourne's home before it caught fire. Jessica and Eric were reportedly ready to make an offer on the property before the fire happened.