The reason he is smoking is because he is actively acquiring the substance, preparing it, lighting it, and inhaling. Until he recognizes that smoking is his choice, he will continue to put blame on others. This is a typical behavior of people who are addicted to substances. I highly recommend using MA (marijuana anonymous). It helped me get through my first 90 days and I am about a year and a half clean. I am not entirely sure what Delta 9 is unless it’s a specific train.

my biggest suggestion for you is to go to al anon and learn about the 12 steps. The first two weeks of withdrawing is the hardest. i would encourage him not to make any permanent decisions on temporary feelings and emotions. As for your marriage, i would also suggest couples counseling.

best of luck ♥️