I'm 70, have always been single and don't want a relationship. I'm in full control of my life because it isn't centered around a romantic partner.

• Bella DePaulo, 70, has and says she always will be single by choice.
• Having the freedom to live exactly how she wants makes her feel fulfilled and happy.
• Around 31% of American women had never been married in 2023, up from around 24% in 1999.

This as-told-to essay is based on a conversation with Bella DePaulo, 70, a social scientist and author from Pennsylvania. The following has been edited for length and clarity.