Billy Joel said he was "devastated" when second wife Christie Brinkley left him during their nine-year marriage that ended in divorce in 1994."I realized love is not concrete," the "Uptown Girl" singer told the producers in the second part of his documentary "Bill Joel: And So it Goes." He added, "You know, you feel like it is, but there are things eating away at it, and in the end it all catches up. And its hard. And I was so devastated."An obviously emotional Brinkley said she had tried.CHRISTIE BRINKLEY RECOUNTS THE DEVASTATING PERSONAL MOMENT THAT NEARLY BROKE HER"I wanted it to work. I knew how lucky I was, having music and all that, but it just didnt work," she explained.The former couple met in 1983 in St. Barts. They married in 1985 and soon had their only daughter, Alexa Ray Joel. "Our relationship went from lots of fun and really totally enjoying each other to his work consuming him, and if I did go on the road, I wasnt seeing him because the unwind period after the show was going on so late into the night, and its like What am I even doing here?" Brinkley said. "And I just got like I dont even know what to do, but I cant be lonely just me and Alexa in this big old house that was supposed to be so full of life and love and music and laughter and all that. Things were starting to deteriorate."Joel said it was a hard time for him because they were newly married and had a young daughter, but he was on the road a lot of the time.CHRISTIE BRINKLEY ADMITS SHE'S A 'FOOL FOR LOVE' DESPITE FOUR FAILED MARRIAGES"I was in a relationship with someone who I cared deeply about, but I was not able to be at home," he said. "I was not able to be with my family. It was a very sad time for me."The 76-year-old said he thinks his daughter knew he and Brinkley were going to split up."And for a child thats a very traumatic thing," he said.Joels own parents divorced when he was 8 years old, around the same age as Alexa when he and Brinkley divorced in 1994, but Joels father left after the divorce, and he didnt see him again until he was in his 20s.CLICK HERE TO SIGN UP FOR THE ENTERTAINMENT NEWSLETTER"She needed to know Id always be there," the "Piano Man" singer said of his own daughter, now 39 years old."I dont think its a secret that his drinking got pretty bad, and he couldnt really remember what he did when he was drinking, so he didnt really know how he could hurt people," Brinkley added.She said she would pretend to be asleep when he came into their bedroom drunk, "cause I didnt want to see him in that condition."LIKE WHAT YOURE READING? CLICK HERE FOR MORE ENTERTAINMENT NEWSHolding back tears, she added, "One night, we had an argument and I said, I really cant take this anymore, and Im just going to take Alexa back up to New York and leave, and he said, Yeah, fine, go.""True love isnt always floating on clouds and ecstasy," Joel told the producers over the lyrics of "And So it Goes.""A lot of its pain."Joel would go on to marry celebrity chef Katie Lee in 2004. They divorced five years later, and he married his current wife, Alexis Roderick, in 2015. They share two daughters. Before his marriage to Brinkley, Joel was married to Elizabeth Small from 1973 until 1983.CLICK HERE TO GET THE FOX NEWS APPThe first part of "Billy Joe: And So it Goes" premiered last Friday on HBO and for streaming on HBO Max. The second part premieres Friday, July 25 on HBO and HBO Max at 8 p.m.