Jennifer Garner is revealing a quirky side of her ex-husband Ben Affleck!During her recent appearance at Diesel, A Bookstore, the 13 Going on 30 actress shared Afleck’s unusual music obsession with non other than Beyoncé.“Do you guys do this? Do you listen to a song over and over again?” the Alias star asked the audience on Thursday. Then she dropped the bomb, “I just want to tell you something. I’ve survived this. I have lived through it.”Garner went on to recount the days in 2009 when Affleck was filming The Town in Cambridge, Massachusetts. “Ben Affleck listens to a song over and over,” she said, according to People. I had a three-month-old and a three-year-old living in a rental in Cambridge, Mass., while he was shooting ‘The Town.’ And he listened to Beyoncé‘s ‘Halo,’ and I would be nursing,” she candidly shared.Affleck directed, co-wrote and starred in the 2010 crime thriller, which premiered at the Venice Film Festival that year and went on to nab a Producers Guild of America nomination for best film — as well as two wins from the National Board of Review.Jennifer Garner and Ben Affleck were married from 2005 to 2015. During their decade long marriage, the couple welcomed three kids – Violet, 20, Seraphina, 17, and Samuel, 13.