I find for myself - and see if it fits you - that when I quit one of my addictive behaviors whether it be smoking, drinking or opiates that I can be and have been successful but somewhere in my psyche I plant an equation that when it equals what I want then it triggers just the excuse to do what I REALLY want to do which is to use again.
My daughter had a seizure so I started smoking again after almost a year without and no cravings whatsoever. What could possibly be the connection?
I struggled through a divorce and picked up opiates again.
I quit successfully again but damnit if the sun goes down 2 degrees off what I thought it would then here we go again.
There doesn't have to be a connection just the excuse we've been looking for to do what we wanted to do all along.
Find the reason to quit again.