She says my reactions are crazy when I know that my reactions are perfectly normal for betrayed partners to have.
Has anyone had any success in bringing up these kinds of requests in such a way that they were heard and addressed?
Is there any way that I can minimize the amount of shame elicited in my wife when trying to get her help in healing wounds she caused?

Ugg...I am so sorry you are dealing with this.
We certainly can help you rephrase your messages. However, I would NOT advise you to think that would be much help.
Do you see how in her response that she is essentially saying "you are the crazy one". I don't see anything where she "sees her part"...
If you want to do some "he said she said", we can likely give you some coaching on "better ways".
Looking forward to your reply.
Best,
FF