Yes, I have been through this. That was me ( your spouse ). My addiction was also pot, but coupled with alcohol = the daily double. They typically go hand in hand.....
Restless - irritable - discontented daily where my feelings. I simply withdrew from my family but tried to control everything = Oxymoron, if you will behavior wise.
I am sorry for your troubles, but you are correct in getting on with your life - as painful as that may seems know. You did the right thing.
It may sound trite to you, not sure. But pray for him......It's on God now.
Until he has a willingness to change there is little hope.
kindly, I wish you peace....