My xh got addicted after suffering from neck pain. He had a 65k a year job, has a BS in business, and is funny, and bright and creative.
He lost everything he has including all his money, job, house, and me.
Hopefully your husband will realize that he needs help and be serious about it.
In the mean time, you need some coping skills. Alanon meetings help. If you could talk to your pastor that would help too. Any counseling is helpful.
I am sorry you have to go through this.