SORP
Like I have said before. I'm sad for you that things between you and your husband did not work out, and that his addiction is controlling him to the extend that he is not willing to see, or not even capable to see what he is doing and by that losing the most important "thing" in his life. The "thing" I'm referring to actually is more than one thing. 1. You as an understanding partner, desiring him to change, having the marriage you deserve. 2. The understanding, supportive wife that desires nothing more than a happy normal marriage that you deserve. 3. The wife, mother for his/your children. 4. His children. 5. The respect he should naturally have from his children. 6. The business partner, secretary, etc. that you were for him. In short I think the "thing" that he will be losing is a happy balanced normal life.
His addiction to porn has robbed him from being objective and seeing life for what it really should and could be. As a whole, he will be the one that is loosing out big time, while he thinks he is the one that is gaining.
No one else, that will come after you, will tolerate what you have tolerated. None will have the love and compassion that you showed towards him, not even to mention the commitment you had, especially over the last 500 days!
At the end of the day he will be all alone, miserable and lonely. Looking at pixels on a screen, thinking this will give him the company and life that he deserves, with a limp dick in his hand, all miserable... (I hope that I'm not to harsh by saying this. But this is reality.)
I believe that if he can see this picture in his mind, and experience the pain that this might bring him, he might re-consider his actions and catch a wake up. It's all about pain and pleasure. If the pain is more than the pleasure he might change for the better. But he is deceived and the thing about deception is that the deceived does not realise that they are deceived.
This is not only true for your husband, but to all and this is a law of nature...
On the other hand, I want to salute you!
You are strong, you have worked through a lot, and you have come out stronger and wiser than what you have ever been.
I'm convinced that you will find the perfect job for you! If not the one you have went for the interview, another. You are advancing in leaps and bounds. You are doing great and this is what's important now. You now need to focus on yourself... and this is what you are doing already!
Stay strong and receive the Blessings!