"Oh, I see...you don't trust that I'll give you the money."
OK wife can I going to show you what I mean about mind-reading. You are telling me I don't trust you, I did not say that, think it, feel it or did I imagine that I don't trust you. When you think for me then your mind is already made up about me and I had no input. If you want to know what I think, feel or believe then just ask. I understand that in the past I might not have shared with you but now I am open to your questions."
I would send the bill to her a let her pay it if she is responsible for it. Let her pay the "freakin" bill.
Be prepared for more pushback from your wife. Just stay calm, consistent and composed.
Cheers
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.