The best thing I can offer is the same thing I tell my brothers, the key word in that f*cked up disorder is POST! We are taught to always adapt and overcome so as hard as it is we need to leave the demons in the past. Sure they sneak up and ambush you sometimes, but you stomp them back with HEALTHY addictions and joyful activities. I would just be real with your friend. Chances are he is getting all the "beat around the bush" treatment currently. Hope this helps.