Wife wont admit to affair and its driving me nuts!

[Morbo]

So, got huge long email from W today.

Started nicely with saying that she would pay off our higher credit card and I could take the lower one. Surprised me a bit but so far, so good. Then again she was the one that used them the most.

She's completely denying everything still and is mad as hell with me. Totally just friends, she is not admitting the slightest wrongdoing. No apologies at all for ANYTHING.
She's especially mad because she's off my family group whatsapp because I told them. She's really, really trying to make me feel bad that I would think she's having an affair and she's good at it! Still making me doubt myself.

Then a big rant over how s**t I was as a husband and all her sacrifices, bla, bla. She has some good points but I've heard them a million times. I owned them at the time, apologized profusely and did what needed to be done, what else can I do?

So, emailed her back.
I was polite but called her on her bs. I then laid out all the info I have on them as "friends" but put my single female boss and me in the story instead. Evidence looked damning to me but I know she'll come back to me denying, denying.

Man, this is wearing me out. I need to run.