"I took a pretty amazing life and marriage ... and threw it away," James says in a promo clip of his interview with ABC News' Nightline, scheduled to air Tuesday night.
James, 41, admits to cheating on Bullock and says his actions – including allegations of affairs with multiple women – have made him "The most hated man in the world.” At one point, he’s so overcome by emotion, he walks away from the interview.
Since the couple’s split, James has spent time in a rehab program and has otherwise maintained a normal schedule at his Los Angeles-area home, where he's often been seen driving his kids to school.
But James is looking to make a change. A source tells PEOPLE that James has put the house he shared with Bullock up for sale. The motorcycle mogul is eyeing Austin, Texas, as a place to spend more time, according to another source. Bullock has long called Austin a second home.
Meanwhile, Bullock has been spending quality time with her new son, Louis, including a Mother’s Day celebration in New Orleans last week.
Part of the interview with James will air on Good Morning America Tuesday and then as a special edition of Nightline that same evening.