My husband and I are 16 months post D-Day of his 4 1/2 year affair. We went through the EMS classes last year. We go to counseling, as a couple and individually. My husband has accountability people and attends a men's integrity group. It's been a very difficult 16 months but we have made so much progress, or so I thought. A couple days ago I found out he has been looking at pictures of his affair partner online for the past month and lying to me about it. He told his accountability people and his counselor, but kept it a secret from me. He says he doesn't want to go back to her, but that he is grieving her. I am so undone. I feel like this has put me back at ground zero. I feel like he will never be safe for me. I feel like I'm walking through a minefield. How can I trust him again? What should I do?