Changing Their Class Schedule
When you are going to school, every semester is a collection of micro-decisions, including choosing your course schedule. When and where you attend your classes is usually up to you, and for this person, their decisions led them to meet the person that would become their wife of 14 years.

This person decided to make a small change in their sequence of classes. The change meant commuting to a different branch of the school they were attending. On the first day of school, they met a girl whom they wouldn’t have met if not for that change. That girl eventually became their wife.