Hi velandra,
The first thing to do is to accept the connection and not demonize it.
A less enlightened person (that is, most people) would interpret the connection as a reason to drop their husband and start over. Luckily you know not to do that as you recognize that the connection isn’t romantic, and yet it’s very, very deep.
I get it. I have those connections. It’s like coming home.
You have to set boundaries for the sake of other people’s interpretations and feelings though. Even his and even yours if need be.
View him as an occasional blessing. If you’re talking to him every day for instance, that might not be good.
Blessings,
Inky