I'm sorry I'm just now reading your post; it's been crazy at work for me for the past week or so as we work on all this oil- and tourism-related stuff down here.
I am soooooooooooooo sorry for your little guy, and this post just broke my heart. Your husband is acting PURE EVIL, and that was SOOO wrong what he did, and so cowardly.
I don't even know what you tell you. It's at times like these (and I'm dealing with one with a 5-year old, son of my daughter's BF) where all you can do is implore God to shelter their ears -- and their little hearts -- SUPERNATURALLY from ever, EVER remembering this stuff.
Hugs,
Puppy
P.S. Your two-word description of your husband was pretty accurate, however.