My DB Coach told me the same thing and it made NO DIFFERENCE... MWD DB Coaches do NOT address infidelity as an addiction... they play softball...
Don't HAVE visits with him... shut him out of your life.. get an intermediary to sit with him and son and you aren't THERE... makde sure the intermediary is strong enough to resist him bullying anyone as well
I don't reccomend you do ANYTHING NICE FOR YOUR HUSABND...