Reality is getting into his face... IMO he thought you were going to drop the proceeding at one point before the hearing (his total lack of preparation) because you never followed previously with it. Also, his answers to the judge showed how self-centered he is. He is just starting to realize that you are no longer under his control/power, and that's a big shock, he had been the one controlling "the situation" those past few years, deciding to cheat, to leave, to stay, to give the silent treatment, to live as a single guy but being served...
It was a tough birthday, but it's the first day toward your new freedom.
You are not alone, you will soon realize that once he is gone, your social life is going to improve a lot. You will be able to invite friends/family over without thinking about what he might do or say. Your home is really going to be your peaceful retreat not a place with that constant dark cloud.
I wish you best luck for your interview, and hope it works for you.
Me 52+ WH 57+ Married 20 + Piecing since 2016 (ready to give up...)