Went thru this for years. I told him porn will no longer be acceptable in my home. It destroyed our sex life. I put an accountability app on our computer called Covenant Eyes. I made him watch a video by Dr Donald Hilton called your Brain on Porn. He didn’t realize what happened to him and the porn addiction. He has been porn free for 5 years. Our sex life has changed pretty dramatically. I told him it was porn or our marriage. Good luck that video is on YouTube and is worth watching.