Tbh he needs be honest with you how much is he having and then see how big of a problem he really has.
I couldnt have it every day. But every one is different. Listening to recovery stories is helping me a great deal. Russell brand is good to listen to about his heroin addiction.
And my opinion and its just an opinion and ive thought like this.. but he could be thinking the thought of not having coke again.. could be it..
He needs to no his life is better without coke.. hes obv stuck in a rut.. and a shit routine.. tell him do a plan with the kids to do activities with them.. but i dont know how old they are. Tell him the 1st month is a big hurdle.. but it will get better and the cravings will go..