How do you deal with fiancé’s silent treatment/ cold violence?

We're getting married in June and are still missing tons of things but got into a huge fight over the budget

Initially we said no bridal party to save but I really wanted at least 1 each, and I said I can sell my stocks to cover it. I think he considers that's his money so we got into a fight and my dad said he would cover the costs( dinner, gufts, dress...etc)

Now we got into another part 2, invites the bridesmaid over and he was upset there is so much extra work with cleaning (my mom did it) and hosting them...etc. He brought up that im always going over budget everywhere, and he's needing to sacrifice his "pocket money", we are gonna deplete our savings for the wedding etc. But all this yelled out, not having a proper conversation. I don't even have a ring yet, I said I could get a cheaper one etc and he brought up old things such as me overspending before and my parents having to give me money. I said it had nothing to do with him!

I did like to buy things but I've changed a lot since and basically just spend on groceries and occasionally a home item like juicer, ladder, Christmas lights for the home. Long story short he kept yelling at me pointing his fingers at me, and he wants everything to be 50-50 now. I disagree because we had a different agreement + the only thing I'm not contributing too is his car payments and insurance. Downpayment for car is contributed by both of us. So I told him he drives it most of the time since I WFH and he lost it.

And he said that I shouldn't be in the house then that we bought together while he is not here. Because I'm not willing to pay for the car, he also told me not to use it and I said fine. And he said this about the house implying that since is 50-50, we should be using it the same amount of time, so if he doesn't get to be in the house and use the heating then I shouldnt either

Like WTf??? The strange thing is he is doing this cold violence again where he doesn't speak to me unless absolutely necessary. He still is asking about the weeding, what's missing etc but I'm super unhappy and obliviously have lost all interest in getting married.idk why he is still planning but doesn't talk to me otherwise. Also no follow up on the ring...etc anything that involves spending money Ye's not mentioning, only doing work on wedding spreadsheet.

He is Doinf this while my parents are still here staying with us( they pay), and my parents think he's so petty and have suggested to not go though with it if needed we just loose the deposit on vendors. But selling the house will be an issue because we bought too high and we'd take a loss for sure.

AsWhat would you do about it? And this silent treatment