Hi, BBKazz.
Welcome to SR.
It’s a positive thing that your SO is going through detox and, probably, rehab.
That is the beginning of his recovery journey, and it’s a long road.
End of the day, it’s his recovery to make.
I would (also) suggest Al-Anon for empathy and support.
Confidentiality is a cornerstone of the program. Who goes there, and what is said there, stays within the rooms.
Good luck and good thoughts.