I think acting normal and also being friendly and willing to listen is always good. I know when my husband was going through his lowest times I just tried to be an ear for him. Taking it all in without comment or judgement. Just letting him unload....
Also giving kind pats on the back once in awhile and smiles can sometimes lift another's spirit.
Another good book... think I may have mentioned this? "Hack," it's about a pastor who has an affair, leaves his family/church and then eventually finds his way back. The changes he goes through, and introspection are quite interesting.
Rysmom, Don't worry about the ring or where your husband is... just keep GALing and living for you and be glad he's in the house after 6:30 to be with you and your son. Any chance that you can go work out at the gym at the same time? If so, make sure you get some really attractive work out clothes. Why does your son have to go to a new school? I understand your concern about your son. Any way to get him involved in some type of positive activity afterschool that may help him work through emotional stuff? Sports, art, or???
There is no arriving, ever. It is all a continual becoming.