Billy Joel is opening up about one of the most complicated chapters of his life in his new documentary, "Billy Joel: And So It Goes." The music legend talked about his affair with the wife of his best friend and bandmate, Jon Small, saying he felt like a "homewrecker." Billy Joel was recently diagnosed with a brain condition, which forced him to cancel his scheduled concerts.

Billy Joel Felt 'Very Guilty' About The Affair With His Best Friend's Wife Several decades after Billy Joel and his longtime friend and bandmate Jon Small fell out over the singer's relationship with Small's then-wife, Elizabeth Weber, his new documentary has offered an inside look at the entire drama. At the time Joel developed a connection with Weber, he was living with Small, and the two were a duo called Attila, who were just starting their careers. Weber was also reportedly unhappy in her marriage to Small, which was the reason she began spending more and more time with Joel.

As emotions began to spill over, Joel knew he had to tell his friend rather than keep hiding it. And when he did, he was compelled to face the consequences of his actions. "I was just in love with a woman, and I got punched in the nose, which I deserved," Joel said, per Fox News .

"I felt very, very guilty about it. They had a child, you know? I felt like a homewrecker." How The Legendary Musician's Best Friend Reacted To The Affair Leading up to the big reveal, Small had noticed that Joel had changed, but he had no idea what m.