Whether I want to keep my kids in my life. I recently got accepted to a Caribbean med school and didn't see a way to matriculate while raising two kids. Told my partner I wanted a divorce and signed over custody. He didn't like it, but my divorce attorney made sure it was done legally.
It's wonderful having all my time to myself again, and in four years I get to go back on the dating scene as an M.D. which will hopefully get me better prospects.