For such a person, don't blindly accuse him of his shortcomings, but he is tired of being tough and not listening.
He likes surfing the Internet. He can find something to do, open an online shop or write something. Take him out for a walk at night. Don't make him change right away. Internet addiction is not so easy to quit. Even if he makes a little progress, encourage him.
Think more about why you married this man in the first place. If it's just for the money, forget it. If you have an emotional foundation, then you need to find a way to make up for his illness. Don't want a divorce as soon as you encounter difficulties. No one is perfect, and leaving a hundred times is not enough.