Closure
If a person gets committed to a facility for being insane that might be closure. Think of the addict in the same light.
Recovering addicts have told me they believe their families suffered more than they did because they were living in a fog, numb in an illusion. Using and associating with people using were the ONLY things that mattered in life. Imagine jumping out of a plane without a parachute and FEELING EVERYTHING is OK?
Just be VERY HAPPY YOU are not addicted