Ultimately, it really doesn't matter. You have absolutely no control over whether what he is telling you is true or not. No control. So placing importance on it is somewhat futile.
A long time ago someone far wiser than I am told me to work the program I wish my son would.....so I've done that to the best of my ability. Not perfectly but as well as i was able at any given time. It has helped me cope with loving an addict. It has helped me keep things in perspective. It helped me stop giving my emotional and psychological health up to a very unhealthy person. It helped me stay calm at times that I would have (in the past) spiraled into orbit. It kept me from tromping outside of my hoola hoop.
This is the ESH I have to offer. Take what you need.......
gentle hugs
ke