He never married

Okay kiddo, so when people love each other a lot, sometimes they want to get married. Getting married means they make a promise to be together forever and share their lives together. But this person you're asking about never got married because maybe they haven't found someone they want to share their life with just yet, or maybe they don't want to make that promise to anyone just yet. It's perfectly okay to not get married if that's not what someone wants to do. They can still have happy and fulfilling lives without being married. Does that make sense?