Never asked my two exes-they were mutual agreements:

1. We were living together with my girlfriend and just figured we ought to be married. even after we married we were still roommates for 6 months till we relocated 1/2 hour away. Ileft after 16 years with my disabled daughter.

2. We were living together and I got pregnant at 42-thought it might be a good idea-it wasn't we got divorced within 2 years.

Once, and I suppose a 29 year two children marriage can be considered a ‘success’ … until it wasn’t. Was tempted to ask once after that, but fortunately didn’t…

Three times.
Success = 100%