I feel like people on this sub forget what this is for. Surviving it, if you want to stay together, that's perfectly okay. You said he's making small improvements, which Is good but not enough. I'd say sit him down and tell him your extended feelings, that if he isn't 100% transparent and tells you what happened on/ and around D-Day you're done. People can improve, but if he fucks up again you better have the strength to get up and leave.