Not exactly the same scenario but my grandparents were best friends with another couple before/during WWII. The two boyfriends (later husbands) were pilots in the Royal Canadian Air Force. And they had always agreed that if something happened to the other, that the surviving one would take care of the “other one’s girl”. And basically not leave one of them to be a single widow with no help I guess.

Well they both survived the war but my grandparent’s friend’s wife passed away some time after the war of cancer, he remained very close friends with my grandparents. When my grandfather passed away in the late 1970s my grandmother married the surviving friend. They were married for many happy years and took care of one another until his death.

It wasn’t until I was like 10 years old that I found out this man (who I lovingly also call grandpa), wasn’t my grandfather by blood. But instead was the best friend of my late grandfather. ❤️ I wish I could’ve known my real blood grandfather too, but I’m lucky to have had the Grandpa I did. It was around the time that this Grandpa (second grandpa) died that my parents told me the truth.

Grandma is still kicking, she’s 96 now.