First off, beautiful, honest writing. Thank you for sharing so bravely. Your story resonates. Addictive behavior of any kind is devastating to relationships. It’s ugly, all the way around, as you demonstrate here.
Please know you’ve done nothing wrong. As others have mentioned, and you know logically, your husband is an adult with addiction. Only he can decide how and when to heal. This is his issue that affects everyone, yet make no mistake — it’s his issue.
I wish you and your family well and hope you can heal as you need to. xx