Sometimes, we are connected to people by events. Sometime, by Season of life. Some are short term relationships, like a bond made during a hospital visit. And sometimes, it is by the marriage of their kids. These is the case with these two.
In the Real World, these two would never be friends. There is not one drop of common ground except their children and grandchildren. Their commonality is they would do anything for those 5 people.
Anything. Even to help rebuilding a fence at said 5 people's house.
Love is a wonderful thing. This kind of love is awesome to watch...