My Xh was exactly like that as well, he told everyone about the D and seemed all happy and excited but the closer and closer it got the more he stopped talking about it and dragged his feet until I finally had to push it along just to finish it. Then no one knew once it became finalized, he stopped talking about it. Before once he had initiated it that’s all I heard was let’s get this done as quickly as possible, I can’t wait to get this divorce....but OW was in the picture then and once that wasn’t the case he wasn’t in a hurry to get it and even did things to try to delay it. My lawyer was even confused and said he’s the one who filed for this freaking divorce...it seems when they don’t have another person that’s when they can be civil and nice or seem like the old them a bit more but when they have someone, in my experience that is when monster is really really ugly. The D was final in July 2019 and he still cycles and tries to hurt me and cause drama any way possible. He did the cake eating for awhile as well until I wised up about that. It’s very hard and very painful but we just have to detach as best we can, pray and love ourselves more. I’m sorry you are going through this too. We are all going through it together and learning about this, ourselves and life and drawing nearer to God in the process.
