Joe Swanberg married the first person he ever seriously dated. When that marriage ended, his romantic life got complicated. Messy, even. He started dating younger women, ended up in an elaborate love triangle, and completely changed his mind about whether he wanted to marry and have children again. He openly describes it as a cliché midlife crisis. Swanberg is no stranger to messy relationships. Throughout his career making television and films, his work has focused on the gray areas of relationships and their difficult-to-navigate emotional territory. So when he hit his own difficult relationship moment, he channeled it into his new film, “The Sun Never Sets.” This week on the “Modern Love” podcast, Swanberg talks about the real-life story that inspired the film, what he’s learned in the process of cleaning up his own mess, and how his approach to relationships is changing. Here’s how to submit a Modern Love essay (https://www.nytimes.com/article/how-to-submit-a-modern-love-essay.html) . Here’s how to submit a Tiny Love Story (https://www.nytimes.com/2018/09/19/style/modern-love-tiny-love-stories.html?pgtype=Article&action=click&module=RelatedLinks) . Subscribe today at nytimes.com/podcasts (http://nytimes.com/podcasts) or on Apple Podcasts, Spotify and Amazon Music. You can also subscribe via your favorite podcast app here (https://www.nytimes.com/activate-access/audio?source=podcatcher) . For more podcasts and narrated articles, download The New York Times app at nytimes.com/app (https://nytimes.com/app) .