Your story sounds mighty familiar - this same scenario happened a LOT in the wake of September 11. Grief-stricken firefighters comforting the widows and families of their fallen comrades, ending up bonding in their grief and having affairs.
I didn't even consider this but you're absolutely correct. I recall hearing multiple stories about this on the news in the wake of 9/11. It makes complete and total sense.
I think I've done a decent job of detaching so far. I realize that even if he IS having an EA with the niece that it doesn't matter. There's nothing I can do about it. I can control ME and the choices I make and nothing more.
You're braver than you believe, stronger than you seem, and smarter than you think. -Christopher Robin to Pooh
Romans 12:12 Rejoice in your hope, be patient in suffering, persevere in prayer.