My husband is addicted to Internet porn. He watches clips and talks to women all the time, especially women?

who live within our vicinity. I use to get angry at him all the time. I've begged him countless time to stop behaving this way and his reply is always the same...I'm a perfectly healthy man, and there is nothing wrong with it It infuriates me when he says that. I've begged and cry to stop to do so but he totally ignores me..he may stop for a day or two and starts all over again....what should I do. I really need your help and some advice. We have been married for 4 years and I'm not sure if its going to last......