In an interview with ABC News' Nightline that aired on Tuesday night Billy Bob said that he was the one that wasn't good enough for her.
"She has one way she wanted to live her life and I had another way to live mine," Thornton reveals. "I was just too insecure."
"People actually said that I didn't deserve to be with her."
And on both of them being famous when they tied the knot:
"When you're in a relationship, any two celebrities or whatever, you know, I think that puts on a lot of pressure. When Angie and I got married, during that time, I was more famous than she was to start with and then she becomes this big thing, it's hard in these relationships."
In the end he is still good friends with her adding,
"We had a great marriage and I chickened out because I didn't feel good enough," he admits. "That's all that happened. It was no big deal, we never hated each other."
Check out the video of the Nightline interview with Billy Bob and let us know if you think he was really the one to blame in their downfall?