I don't know what others think, and I'm no counselor, but this sounds just like things Perv has done, who is NPD. Very NPD. In such a case I've found I cannot win, but search for the calmest and shortest reaction.
This is ultimatum, in my opinion and perhaps he's even having a try at blackmail. It is said and I agree that NC with an NPD person may drive them zaney and it sounds kind of like your WH is getting there. So he's got to amp up his "ducks" to try to get some movement out of you.
What I say is kudos, in a strange way, for sticking to your guns with the NC...it's not easy, is it?
STBXH/Perv orders and commands like that but will not accept anything resembling it in return...and it's as simple as accepting an invite for DD - if he is not asked, even on "my weekend", he is livid.
I think it's the control of your WH slipping out of his hands, too, another thing that drive NPD people zaney.
If it were me, and here I am, I would tread as lightly as you can. I have both IC and L who are extremely supportive of me and now I do not answer Perv without consulting one of them. If I can esp. use L as backup, it gets him to back off. I don't do it in a threatening way, I say things like, "I don't know, I will ask."
You stuck to your guns also and said you wouldn't help him pay for something and so he's probably rather angry about that-and angry in general-so no spendng time thinking of ways to bother you and yes, if he can find a third party to convince, all the better for him.
Do you have a third party for you, as well? I am worried about what he will fill this "counselor's" ears with about you that could be not true or made bigger to make you look bad.
It's funny for me as a person who has had many church/religious jobs. I question religion esp. nowadays, but in reality for me, the term "Christian" simply means "boundaries". Christian people aren't immune to wrong-doings and I could write a book about several religious jobs I've held that people were scheistered at.
I think of that word as a label and if he isn't Christian, he may not have a good understanding of it's meaning, but I don't want to judge anyone or offend anyone, either. This is just what I've experienced and been hurt by, as well as some relatives.
For me it's kind of like learning a doctor was wrong, or these priests in the news-it's just people.