In all honesty OP, not posting any of this, and paraphrasing it the way you did has probably drawn the responses you received.
Bear in mind also, that you didn't make any reference to previous threads or any further backstory, and the rest then looks like drip-feed.
So, given what you wrote, its not really on to level the blame you have at those responding.
FWIW I dont blame you for wanting out when your wife broke her vows (but you didn't make that clear in your OP), and I certainly don't think you need to justify who you are in order to avoid having her cheating blamed on you. She cheated, her bad.
There was no backstory, and to be fair you sought advice on how to manage for two months. I did respond to that with the fact that you sound to have sufficient family home space to take separate bedrooms and living spaces. I would be seriously wondering if you were sharing a one-bed flat or studio, but you have options in your circumstances so long as you make it clear its over, no further discussion unless through lawyers.
Also, just tell her! If you flounce off in a huff like you have here blaming everyone for your communication, or lack of, and then ignore her, well frankly, as most said, thats just going to make things worse.
It doesn't take a psych to see/know that.
I hope you can steer this through as painless a path as possible and stick to your guns. If you have to, then write to her making everything clear without possibility of interruption from her.
Its an awful process and there are certainly better and worse ways to get through it. I hope you find the least painful.