Paradise (Second Opportunities #1) by Judith McNaught

Corporate raider Matthew Farrell had come a long way from the poor, scruffy kid of Indiana's steel mills. A long way from the country club where, feeling like an outsider, he had dared to fall in love with a beautiful blonde named Meredith Bancroft, and known a once-in-a-lifetime passion and betrayal that still haunted his memory... Now world leaders courted him, the media watched his every move, and he was ready to move in on the Bancroft empire.