May I ask you WHY she is so resentful? Have you given her REASON to be so resentful? Is there more to this than you've posted? I guess I just don't understand.
Was the first part of your post a mini-confession of cheating? Did you cheat? Does your wife know about it? It sure sounds like it, thus the resentment. right? Correct me if I'm wrong.
If that's the case, and she won't go to counseling, she won't work on the resentment, then I guess the marriage is over -- unless you want to live like this the rest of your life.

YOU could go to counseling - which might help. But your marriage would still be the same, PROBABLY. It might help if you went to counseling, but there are no promises.
I wish you the very best. I wish I could help - but I believe it's past that now. God bless and please take care of yourself. Hugs, Lee