As a teenager in NJ in 1973, I knew Pat as an adult friend of my parents and frequent home dinner guest.
I grew up, off to college, & job in Seattle. In 1983, job sent me to Fort Worth, TX to work at customer site for 2 weeks. That was my only ever customer site visit. My contact at customer site in TX was Bob.
Discovered Bob was married to ... Pat, who had divorced & moved. Hadn't thought of Pat in 10 years, assumed she was still in NJ, and hadn't thought of her again after 1983.
That's a basic enough coincidence and worthy on its own of your blog here.