my children were grown, but it was still hard. I agree that your child needs to be included in knowing what is daddys issue, so that he knows in his own world what is happening and it doesnt seem so out of control.

Speak to him on an age appropriate level. Many of us what to give too many details and little kids dont need or want them. As they get older and older they will keep returning with follow up questions. "why do cows make milk?" to feed their baby cows. Many kids dont want to know about world hunger, processing habits of commercial farms, or about pasteurized vs raw. As he grows he will come back with more.

Good for you! im glad you wont be leaving him in the dark. Even if you dont share with your neighbors you shouldnt leave your inner circle in the dark.