This is the same crisis. It didn't end when he came back. He maybe seemed a little different. He was likely in depression stage and now he is still moving along in the tunnel. That is good. Everything you are seeing is just more of the crisis. It is a little shocking/surprising but it is completly normal(for MLC). I don't think by what you are saying that he has gone back to replay. But that doesn't mean he was done when you finished replay. You still have to work on rebuilding your marriage. He still has to break withdrawal and all the decisions that go with that.
Up to breaking withdrawal they are still processing, still deciding whether they want to stay married. Even into acceptance there is more going on and you may see some strange things. You might want to re-read these stages again to refresh your memory, and then ask some more questions.
