Tiger Woods is learning that, in the immortal words of Neil Sedaka, breaking up is hard to do. The New York Post reports that a lonely Tiger has isolated himself from friends. Not even buddy and former NBA star Charles Barkley has been able to get in touch with him. "I've been trying to get to him and can't, it's very frustrating," Barkley said, adding, "Hey man, we love you. If you need anything, pick up the phone." The golf star reportedly spends his days eating cereal and watching cartoons, and his nights hitting golf balls, leading to concern among his friends "that he is dealing with the situation in a very unhealthy way," according to an unnamed source. Woods has reason to worry. His wife, Elin Nordegren, is intent on divorce and has reportedly consulted top Hollywood divorce lawyer Sorrell Trope. British bookmaker William Hill is already taking bets on how much of Woods' $1 billion fortune Nordegren will get, offering 25-1 odds that she'll receive more than $500 million in the divorce settlement, 6-4 odds for less than $100 million, and 1-2 odds for between $100 million and $500 million.