Many on here are supporting children going through addiction and will understand what you’ve said about feeling empty and not being able to cry anymore. If my son had a partner I wouldn’t blame them at all for walking away and making the decision the they don’t want that chaos in their life.
I think words are easy, addicts are full of promises that they probably hope to honour but when it comes to it, have no power to follow through with. If you can’t see real change and don’t want this life you should go. If I had a daughter living with an addict I’d be begging her to get out. It will hurt your husband but you didn’t cause this and you can’t solve it.
Ten years is a long time.