That sounds positive 🙂
He needs to understand that its not him that you dont like/trust, its the drug and what that makes him. When my husband had the lightbulb moment, we agreed that I would test him regularly, and because he had stopped he was fine with that agreement. His tests was positive for a week or so, then the line was fainter, and I think at about 10 days it was negative. I also could just tell he wasn’t using.
Take care of him, feed him good food regularly, keeping full up is important, if alcohol is a trigger its worth abstaining from that too (my husband cannot drink now as for him the two went together, not all the time, but most of it)
I truly hope that he can do this, he needs to see he has your support, and that you are not the enemy, you just want your husband back.
Good luck xx