Rex and Katharine met on a trip in South Dakota. She wanted a baby; he did not. Could he be a sperm donor? No problem. The agreement was simple. They would both get what they wanted: Katharine would raise her baby in California, and Rex would continue his life as a builder and tinker in Michigan.Then, they fell in love.After hearing Katharine’s story, Anna Martin, our host, talks with Rex about changing his mind, unlearning generational lessons and raising a son who is comfortable asking his dad questions.Today’s story:“Seeking a Father for My Child (Relationship Optional),” Katharine Dion Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify. 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.